Plaka Bridge ( Greek : Γεφύρι της Πλάκας , Gefýri tis Plákas ) is a 19th-century stone one-arch bridge in Greece that collapsed during the floods of 1 February 2015, and was rebuilt in 2020.
60-626: It is located at the borders of Arta and Ioannina prefectures, above the waters of Arachthos River . Administratively, it belongs to the community of Plaka-Raftaneon . With its arch of 40 metres (130 ft) width and 17.61 m (57 ft 9 in) height, it was the largest one-arch bridge in Greece and the Balkans , and the third largest one-arch stone bridge in Europe . It also had two small auxiliary arches of 6 metres (20 ft) width on its two sides. It
120-454: A sauna , ping pong tables, and more. More than 40 sport teams exist, and the sports practiced include aerobics , yoga , Pilates , basketball , volleyball , soccer , handball , ping pong , tennis , martial arts inside the campus facilities and swimming , polo , rowing , yachting , rappelling , rafting , squash , wind surfing , and equestrianism outside. Each year several inter-departmental championships are organized among
180-495: A European center of decentralized interdisciplinary, educational, research, technological and cultural activities of NTUA. The NTUA Music Department was established in 1960 by Chancellor Alexander Pappas. The first president of the music department was composer Vassilis Makridis. It features a mixed choir , a string orchestra , and free lessons for various instruments, among others piano , guitar , bouzouki , and cello . The music department groups regularly perform publicly within
240-544: A broad and diverse range of subjects, strong industry links, and a commitment to quality assurance, but faces issues like state intervention, funding inadequacies, and the need for better external stakeholder engagement and internal services. The Averof building is one of the most important and elegant buildings of the Athenian Neoclassical period located in the center of Athens and the most important work of architect Lysandros Kaftanzoglou . It constitutes also one of
300-442: A brutal crackdown by the regime. The uprising was ignited by a series of student demonstrations and occupations, each met with increasing violence from the authorities. The final confrontation began on November 14th, when students barricaded themselves inside NTUA's Patission Complex and began broadcasting a pirate radio station , calling for popular rebellion. On November 17th, the military regime used army tanks to break through
360-580: A central library, a computer center and a medical center. The School of Applied Mathematics and Physical Sciences is housed in the center of the campus. Right next to it is the Mining and Metallurgical Engineering School. The Civil Engineering School and the Rural and Surveying Engineering School are both housed on the south-west near the Zografou Gate. Mechanical Engineering, Chemical Engineering, Naval Engineering, and
420-555: A collection of over 2.5 terabytes of free and open source software. English, French, German and Italian are the four languages taught in NTUA. All non-exchange students have to choose one from those as a mandatory foreign language course. For foreign students, the NTUA Linguistic Service offers the option of attending Greek courses during the entire academic year , free of charge. These courses are intended to provide students with
480-450: A technical education facility by the state — a crucial step in its development — as it became adapted to the nation’s developmental needs. In 1914, new schools were created and was officially named Ethnicon Metsovion Polytechnion (National Metsovian Polytechnic) went under the supervision of the Ministry of Public Works. This is when new technical schools started to be formed, a process that
540-563: A university in Athens, Greece. It is named Metsovio(n) in honor of its benefactors Nikolaos Stournaris, Eleni Tositsa , Michail Tositsas and Georgios Averoff, whose origin is from the town of Metsovo in Epirus . It was founded in 1837 as a part-time vocational school named Royal School of Arts which, as its role in the technical development of the fledgling state grew, developed into Greece's sole institution providing engineering degrees up until
600-506: Is accessible through three main gates: the Katechaki and Kokkinopoulou Gates on the north, and the Zografou Gate on the west. There are 2,000 dedicated parking spots scattered throughout the campus, most nearby all major buildings. The campus resides near the metro station of Katechaki , which makes it accessible within minutes from any area of Athens. Furthermore, six different buses are available for transportation from various city locations to
660-496: Is available to the public at all times for studying, and available to students, faculty, and internal and external researchers for borrowing. The central library building at Zografou campus houses also the historical library of NTUA as a special collection. This scientific-technical library is unique in Greece, and one of the most important in Europe, since it contains approximately 60,000 volumes and periodicals (1,096 titles) issued from
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#1733086130860720-471: Is commemorated annually on November 17th by students, political parties, and the Greek government as a symbol of the struggle for freedom, democracy, and social justice. A monument created by Memos Makris and erected at the NTUA campus honors the victims of the uprising and serves as a poignant reminder of the sacrifices made by those who fought against tyranny. The emblem of the NTUA features Prometheus bringing
780-608: Is funded by the NTUA endowment, or often directly through public or private funds. The National Technical university of Athens is one of Greece's top universities. In 2025, the QS World University Rankings (WUR) ranked NTUA #321, with the corresponding faculty area rank being #142 for Engineering & Technology . In Europe, NTUA secured the #180 spot. According to the QS WUR Ranking By Subject (2024) for Civil and Structural Engineering, NTUA falls within
840-573: Is responsible for awarding professional licenses to all practicing engineers in Greece. In 1930, the Athens School of Fine Arts was established, acquiring its independence from the NTUA, as a school exclusively focused in the teaching the fine arts. This allowed the two schools to develop separately as a technical and an arts school respectively. In 1941 to 1944, the National Technical University of Athens played an important role in
900-681: The Axis Occupation of Greece , the Treaty of Plaka [ el ] was signed near the bridge among the armed groups of the Greek Resistance , EAM , EDES , and EKKA . According to the treaty, resistance groups agreed to refrain from infringing on each other's territory, and all future war efforts would be directed against the Germans. This marked the end of the "first round" of the Greek civil war, which had started on October 12, 1943. In spite of
960-531: The Culture Ministry travelled to the region to assess the situation and announced that it was technically feasible to restore the historic bridge. Experts assessed the damage. The materials would be recovered from the river once water levels have fallen. As of July 2020, restoration work, supported by the National Technical University of Athens is over, and the rebuilt bridge was completed in
1020-600: The Pineios valley and Thessaly . There are low-lying agricultural plains in the west. Arta borders on the regional units of Preveza in the west, Ioannina to the north, Trikala in the east, Karditsa to the east and Aetolia-Acarnania to the south. The main rivers are the Acheloos in the east, the Arachthos in the centre, and the Louros in the west. Most of the population lives in
1080-415: The engineering disciplines, including architecture , and one for applied sciences (mathematics and physics). Undergraduate studies have a duration of five years. The university comprises about 700 of academic staff, 140 scientific assistants and 260 administrative and technical staff. It also has about 8,500 undergraduates and about 1,500 postgraduate students. Eight of the NTUA's Schools are housed at
1140-400: The 17th century until 1950. The main bulk of NTUA's historical collection consists of old and rare books, pamphlets, maps, engravings and encyclopedias. Lavrion Technological and Cultural Park (LTCP), is a body of scientific research, education, business and culture. Founded in place of the old French Mining Company of Lavrion (Compagnie Francaise des Mines du Laurium) in 1992, as a result of
1200-459: The 1821 Greek revolution . The Averof building reached a deteriorating state and was eventually in great need of restoration and modernization in order to continue operating as an educational establishment. The aim of the conservation project, namely for the Averof to be used again as an educational building, was successfully achieved after the building became operative in the beginning of 2010 and won
1260-698: The 1878 Congress of Berlin . A famous landmark of Arta is the Old Bridge over the Arachthos river. As one of the first completed sections of the future Ionia Odos linking Ioannina with Patras and Kalamata , the motorway bypass of the GR-5 around Arta was opened in 1997. The main highways are: National Technical University of Athens The National ( Metsovian ) Technical University of Athens ( NTUA ; Greek : Εθνικό Μετσόβιο Πολυτεχνείο , National Metsovian Polytechnic ), sometimes known as Athens Polytechnic ,
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#17330861308601320-468: The 1950s, when polytechnics were established outside Athens . Its traditional campus , located in the center of Athens on Patission Avenue on a site donated by Eleni Tositsa, features a suite of magnificent neoclassical buildings by architect Lysandros Kaftantzoglou (1811–1885). A new campus, the Zografou Campus, was built in the 1980s. NTUA is divided into nine academic schools, eight being for
1380-626: The 51-100 range. Its highest position in this category was #25 in 2013. NTUA has the highest citation impact score (0.88) among the Greek universities, based on a ranking prepared by the Directorate General for Science and Research of the European Commission in 2003 (updated 2004) that was compiled as part of the Third European Report on Science & Technology Indicators. During 2022, 130 researchers from NTUA were included among
1440-641: The European Union. There are currently 20 departmental or inter-departmental postgraduate courses, coordinated by NTUA Departments, leading to the respective Post Graduate Specialization Diploma, with a minimum duration of 17 months, including one in Business Administration (in collaboration with the Athens University of Economics and Business). Moreover, NTUA participates in nine post-graduate programs coordinated by other Greek Universities. After
1500-484: The National Technical University of Athens for the Protection and Development of Mountainous Environment and Local European Cultures was founded in 1993 by decision of the National Technical University of Athens Senate, following the proposal of the then Rector professor Nikos Markatos . The principal aim of MIRC is to contribute to the protection and development of mountainous environment and local European cultures and
1560-569: The Zografou Campus, while the School of Architecture is based at the Patission Complex. NTUA was established by royal decree on December 31, 1836 (OS) , January 21, 1837 (NS), under the name "Royal School of Arts" ( Greek : Βασιλικό Σχολείο των Τεχνών ). It began functioning as a part-time vocational school (only Sundays and holidays) to train craftsmen, builders and master craftsmen to cover
1620-490: The acquisition of the Post Graduate Specialization Diploma, the student can proceed towards submitting a doctoral thesis. NTUA boasts high research activity, as research and education are both its goals. Research is managed by administrative and education personnel, but can be conducted by graduate and sometimes undergraduate students as well. Research is administered by five separate offices: Research
1680-462: The benefactors who financed construction of this campus. Though the Patission Street campus was incomplete at the time, rising student demand made it urgent to relocate. In 1887, the institution was partitioned into three technical schools: Structural Engineering, Architecture and Mechanical Engineering — all four-year degrees at the time. It was at this point that the institute was recognized as
1740-573: The bridge collapsing during construction (in 1863 it collapsed on the very day of its inauguration ). The cost of construction, 180,000 kuruş , was covered by the local communities and the rich merchant Ioannis Loulis. On 3 February 1878, during the anti-Ottoman revolt of that year, Greek troops under the command of Konstantinos Kottikas defeated the Turkish garrison of the bridge and made them retreat. Between 1881 and 1912 (the First Balkan War ),
1800-651: The bridge marked the border between the Kingdom of Greece and the Ottoman Empire , and a customs building was erected alongside it, which still survives. Also, near the bridge there was an outpost of the Greek army and an inn . The bridge used to be a trade route, connecting Tzoumerka with Epirus and Thessaly . During World War II , it was bombed by the Germans , but withstood the bombing with minor damage. Locals repaired it using cement in 1943. On 29 February 1944, during
1860-539: The campus: the 608 from Galatsi , 230 from Acropolis , 242 from the Katechaki Metro station and 140 from Glifada . On the campus lies the NTUA Central Library, which has operated since 1914, and was the first library in Greece with a complete index. Today, it remains one of the largest technical libraries in the country, featuring a collection of over 215,000 books and 100,000 scientific issues. The library
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1920-682: The country's political life with the Greek students participating in the National Resistance under the German occupation. During the Axis occupation of Greece , NTUA, in addition to its function as an academic institution, became one of the most active resistance centers in Athens. The Polytechnion Uprising of November, 1973, marked a turning point in Greece's struggle against the military dictatorship that had seized power in 1967. This historic event, which began with student protests at NTUA, culminated in
1980-563: The emblem are part of the Hadjikyriakos-Ghikas collection of the Benaki Museum . The National Technical University of Athens is divided into nine academic schools ( Greek : σχολές ), which are furthermore divided into 33 departments (Greek: τομείς): The academic calendar of NTUA comprises 10 independent, integral academic semesters. Each semester lasts 18 weeks: 13 weeks of classes, a two-week break (Christmas and Easter holidays for
2040-506: The facilities of the university, but also elsewhere. At the moment, the department's president is conductor and composer Michalis Economou. The Dancing Department was established in 1990. It is formed by students, and it features various groups, including a Greek traditional and Cretan folk dances group, a European and Latin Ballroom dances group, a Salsa and a tango group. The groups meets weekly, and perform regularly inside and outside
2100-408: The facilities of the university. Attendance and dancing lessons are free for undergraduate and graduate students, alumni, faculty and even people not related to the university. The dancing department is housed near the center of the main campus. The Theatrical Group was established in 1991. It is a self-managed group, which teaches the art of performance and often performs in public. Participation in
2160-513: The fall and spring semester respectively), and three weeks of semester exams. The tenth semester is devoted to the preparation of the diploma thesis. The diploma thesis has to be related to one of the courses of the faculty. The student has at his or her disposal at least a full academic semester to prepare the thesis. Upon completion of the thesis, the student must take part in an oral examination that can take place either in June, October or February, after
2220-638: The final examinations, provided that the student has passed all courses prescribed by the curriculum. An important part of the studies in NTUA are the summer "training" projects which take place in Industrial and Production Units, in the period between the end of the spring semester and the beginning of the fall semester. They constitute an elective course for the Faculties of Civil Engineering, Survey Engineering (Surveying and Geodesy Camp) and Mining and Metallurgy Engineering (Mining Camp) and are partially subsidized by
2280-450: The fire from the gods to the mankind. In Greek mythology , Prometheus defied the Olympian gods by giving fire to humanity in the form of technology, knowledge and, more generally, civilization. This emblem underscores NTUA's commitment to addressing real human needs and dimensions. The emblem is round and black. It features Prometheus in the center holding a lit torch with his right hand. To
2340-451: The former prefecture Arta. The prefecture had the same territory as the present regional unit. At the same time, the municipalities were reorganised, according to the table below. Arta was one of the capitals of the Despotate of Epirus in the late Middle Ages . The territory of the regional unit was ceded to Greece in 1881 by the Ottoman Empire , along with Thessaly , in accordance with
2400-608: The gates and unleash a wave of violence against the students and their supporters. The toll of the Polytechnion uprising was tragic. Several demonstrators were killed; many more were arrested by the military police and were tortured for months in military prisons. The uprising galvanized the Greek people and the junta was irreparably damaged by the popular outcry (it fell in 1974, after the Turkish invasion in Cyprus ). The Polytechnion Uprising
2460-628: The grand prize of Europa Nostra in 2012. The main campus is located in the Zografou area of the Athens metropolitan area , housing all the schools of NTUA except architecture, which remains in its traditional location on the Patission Avenue for historical reasons. The main campus spreads over an area of about 190 acres, 6 km from the center of Athens. It includes buildings of 65 acres with fully equipped lecture theaters, laboratories, libraries, gyms,
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2520-460: The group is free for students. The theatrical group is housed near the center of the main campus. The theatrical group has also organized a separate percussion lessons group. The main sports facilities of NTUA are housed in the Sports Center located to the south of the campus, taking up about 3,500 square meters. The campus sport facilities feature tennis and soccer courts, a field and track,
2580-411: The initiative undertaken from the National Technical University of Athens. LTCP aims at linking scientific and technological research conducted in Athens with the needs and interests of the business world, and to the realization of cultural events related to the promotion of the history and culture of the wider area of Lavreotiki, and the emergence of the history of activities in the past had developed in
2640-458: The introduction of several new technical courses. This restructuring continued steadily until 1873. At the time, the school became overwhelmed by the plethora of students wishing to learn higher technical skills. This led to its move to a new campus. In 1873 it moved to its new campus in Patission Street and was known as Metsovion Polytechnion (Metsovian Polytechnic) after the birthplace of
2700-729: The maintenance of premises. The LTCP area is a unique monument of industrial architecture and archeology and placed him in a series of housing facilities for business and research excellence. The services provided by LTCP as well as its renovated facilities, continue to support research, education and technology. Today, LTCP is essentially the only technology park in Attica, which specializes in areas – keys of modern applied technology, such as information technology, electronics technology, telecommunications, robotics, technology laser, environmental technology, energy, shipbuilding, marine technology, etc. The Metsovion Interdisciplinary Research Center (MIRC) of
2760-594: The most important creations of European Neoclassicism , directly influenced in its design by the monuments of the Athenian Acropolis . Its construction began in 1862 and ended in 1878. After its completion, the building was in continuous use for more than 125 years during which it suffered from several additions and alterations. The main building has housed at times the National Gallery and various exhibitions of Schliemann 's archaeological findings and relics of
2820-477: The needs of the new Greek state . In 1840, due to its increasing popularity and the changing socio-economic conditions in the new state, NTUA was upgraded to a full time technical school which worked alongside the Sunday school. Courses were expanded and the institution was housed in its own building on Pireos Street . In 1843 a major restructuring was made. Three departments were created: The new department's object
2880-420: The new Electrical Engineering School are all housed near the middle of the campus, while the old electrical engineering buildings remain on the north-east. There are in-campus roads making all buildings accessible by bicycle and car. There are also various internal buses that allow for transportation within the facilities, driving around the perimeter of the campus and through eight different bus stops. The campus
2940-440: The provision of continuing education . As well as, the conduct of research , studies, seminars and conferences , relevant to the broader object of MIRC, the creation of a European network with related organizations under the aegis of the center or the participation in already existing networks. The above will be utilized by universities, cultural, research and productive organizations with the aim of assisting Metsovon in becoming
3000-478: The public. The bridge, which was one of the most impressive examples of Greek popular architecture, collapsed on 1 February 2015. A flash flood caused by heavy rainfall caused the Arachthos River to rip the bridge's foundations from the riverbanks leading the central section of the bridge to collapse and be washed away. The next day, Alternate Minister of Infrastructure Christos Spirtzis and representatives of
3060-624: The right is an altar with a flame on top and the name "Prometheus the Fire-bringer ( Pyrphoros ) inscribed on the sides. On the left side of the emblem, the name ΕΘΝ • ΜΕΤΣΟΒ • ΠΟΛΥΤΕΧΝΕΙΟΝ is written in capital letters, along with the year NTUA was established in Greek numerals (i.e., [REDACTED] [REDACTED] [REDACTED] [REDACTED] ). The emblem was designed in 1954 by the greek artist Nikos Hadjikyriakos-Ghikas , who also served as Professor of Drawing until 1958. His original sketches for
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#17330861308603120-465: The school of Mechanical & Electrical Engineering was split up into two separate schools, Mechanical Engineering and Electrical and Computer Engineering , which is almost the form of schools maintained until now. In 1923, the NTUA alumni formed the core of the Technical Chamber of Greece , the professional organization that serves as the official technical adviser of the Greek state and
3180-595: The summer of 2020. Arta (regional unit) Arta ( Greek : Περιφερειακή ενότητα Άρτας ) is one of the regional units of Greece . It is part of the Epirus region. Its capital is the town of Arta . The regional unit of Arta is located north of the Ambracian Gulf . The main mountain ranges are the Athamanika in the northeast, the Pindus in the east, and Valtou in the southeast. Only one mountain road links Arta with
3240-574: The teams of the university faculties. NTUA student's teams have been distinguished and received many awards in Panhellenic University Games, as well as in university games abroad. There is an open source students group whose purpose is to promote the use of open source software throughout the university and beyond. Furthermore, NTUA officially supports open source software by using it in its laboratories and other facilities, but also hosting mirrors for all major open source projects with
3300-858: The top-cited scientists (top 2%). Between October 2015 and July 2016, the Hellenic Authority for Higher Education (HEHA) carried out the external evaluation of all Greek institutions of higher education. The final external evaluation report for NTUA was submitted by the experts in November 2016. The report stresses that NTUA is well-organized and boasts an outstanding reputation due to its students and faculty, who have significantly contributed to Greek science and technology. The leadership has clear academic, administrative, and research goals, and strategic initiatives to address both strengths and weaknesses. Challenges include adapting to changes in higher education, legal obstacles, and staff alignment. The university has
3360-402: The two small 6 m (20 ft)-wide relief arches, the bridge's apex thickness of 1.56 m (5 ft 1 in) has been considered small by experts, causing a concentration of horizontal stresses in a region where a 15 cm (5.9 in) crack could be found. During heavy rains in 2007, the bridge nearly collapsed, and a restoration was considered but not taken, raising criticism by
3420-401: The west, in the Arachthos valley, south and east of Arta. The Athamanika and Valtou mountains are the least populated. The regional unit Arta is subdivided into 4 municipalities. These are (number as in the map in the infobox): Arta was established as a prefecture in 1882 ( Greek : Νομός Άρτας ). As a part of the 2011 Kallikratis government reform, the regional unit Arta was created out of
3480-463: Was completed three years later, in 1917, when the NTUA changed form. By special law, the old School of Industrial Arts was now separated into the Higher Schools of Civil Engineering , Mechanical & Electrical Engineering , Chemical Engineering , Surveying Engineering and Architecture . Later, the schools of Naval Engineering , and Mining and Metallurgical Engineering were formed, and
3540-472: Was considered "one of the most difficult, single-arch bridges to construct." The bridge was the starting point for rafting and canoeing on Arachthos River. The bridge was built upon the order of Ottoman Sultan Abdülaziz , and was completed in 1866 under the supervision of the famous local builder Kostas Bekas ( Greek : Κώστας Μπέκας ) from the nearby village Pramanta . Two previous attempts by other builders in 1860 and 1863 had proven unsuccessful, with
3600-461: Was fine arts and engineering. The new department, which was later renamed School of Industrial and Fine Arts , rapidly evolved towards a major higher education institution. Tradition has it that arts referred to both technical professions and fine arts. Even today, the school maintains a school of architecture that is closely related to the School of Fine Arts, which later evolved to become a separate school. The name Polytechnnic came in 1862, with
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