Olympia City Music Theatre Maria Callas

Central Athens (Greek: Κεντρικός Τομέας Αθηνών) is one of the regional units of Greece. It is part of the region of Attica. The regional unit covers the central part of the agglomeration of Greater Athens.

Minuscule 800 (in the Gregory-Aland numbering), A407 (von Soden), is a Greek minuscule manuscript of the New Testament written on parchment. Palaeographically it has been assigned to the 12th century. The manuscript is lacunose.

The German Archaeological Institute at Athens (German: Deutsches Archäologisches Institut (DAI), Abteilung Athen; Greek: Γερμανικό Αρχαιολογικό Ινστιτούτο Αθηνών) is one of the 19 foreign archaeological institutes operating in Athens, Greece.

The Museum and Study Centre of the Greek Theatre is a museum in Athens, Greece. It was founded by the historian of the Greek Theatre, Yiannis Sideris in 1938.

The Hellenic Mathematical Society (HMS) (Greek: Ελληνική Μαθηματική Εταιρεία) is a learned society which promotes the study of mathematics in Greece. It was founded in 1918, and publishes the Bulletin of the Hellenic Mathematical Society (Δελτίο της Ελληνικής Μαθηματικής Εταιρίας) among other research and educational publications. It is a member of the European Mathematical Society. They also organize national math competitions.

Akadimias Street (Greek: Οδός Ακαδημίας) (named after the Academy of Athens) is a major street in Athens that runs parallel to Panepistimiou Street and Stadiou Street from Vassilissis Sofias Avenue, in Kolonaki district, to Kanningos Square in the area of Exarcheia. Its total length is about 1.2 km. It has three lanes and runs almost diagonally from southeast to northwest. During World War II, it was officially renamed Roosevelt Street in honour of the US President Franklin Roosevelt, but the Athenians continued to refer to it by its original name. Buildings along the street include the rear side of the classical trilogy of architect Theophil Hansen (University, Academy and National Library), the front side being on Panepistemiou Street. Buildings along the street also include the Olympia Theatre, an opera venue for the Greek National Opera and the church of the Life-giving Spring (Ζωοδόχος Πηγή, Zoodochos Pigi) (in Greek). To the North-East is the district of Kolonaki.

Panepistimio metro station is on Athens Metro Line 2. It opened on 28 January 2000, and is adjacent to the National Library of Greece, the National and Kapodistrian University of Athens and the Academy of Athens. "Panepistimio" means "university" in Greek. When Line 4 of Athens Metro is completed, the station will have an underpass connection with "Akadimia" Station

Panepistimiou Street (Greek: Οδός Πανεπιστημίου, "University Street", named after the University of Athens, the central building of which is on the upper corner) is a major street in Athens that has run one way for non-transit vehicles since 2002 from Vasilissis Amalias Avenue, Syntagma Square and Vassilissis Sofias Avenue to Omonoia Square in which is now a pedestrian crossing and before an intersection. Its total length is about 1.2 km. The street was formally renamed as Eleftherios Venizelos Avenue in 1945 (after the famous Prime Minister) but is still usually known by its historical name. It has six lanes, of which five are for traffic and one eastbound lane for transit buses only. Most of the street runs almost diagonally from southeast to northwest. Buildings along the street include the Bank of Greece, Athens Eye Clinic, the University of Athens, the Academy of Athens, the National Library, the Numismatic Museum, Titania Hotel, Attica Department Store, as well as a part of the Grande Bretagne Hotel and the Catholic Cathedral of Athens. Many buildings as high as ten to fifteen stories line this street. Old neoclassical buildings of no higher than two to three stories used to exist until the 1950s, when a construction spree, which lasted several decades, demolished all but a few of them.

The City of Athens Cultural Center (Greek: Πνευματικό Κέντρο Δήμου Αθηναίων) is the cultural center of the Municipality of Athens, in Greece. It is housed in an 1836 neoclassical building in the center of Athens. Originally the building housed the Municipal Hospital. It includes three exhibition rooms, the Fotis Kontoglou, Georgios Iakovidis and Nikolaos Gyzis halls, as well as the Antonis Tritsis amphitheatre, which holds various interdisciplinary seminars, conferences and other events.

In Greece, the Council of State (Greek: Συμβούλιο της Επικρατείας) is the Supreme Administrative Court of Greece.

Akadimia (Greek: Ακαδημία, pronounced [a.ka.ðiˈmi.a]), literally "Academy", is a neighborhood in central Athens, Greece. Located directly north and slight west of Syntagma Square, it is bounded by Akadimias Street, Panepistimiou Street, Solonos Street and Stadiou Street. It is named after the Academy of Athens, since this was the first educational building to be built there in 1859. One of the busiest areas of Athens, many important buildings are found here. The Panepistimio metro station serves Line 2 of the Athens Metro, while there is a tram stop at Plateia Klafthmonos.

The Academy of Athens (Greek: Ακαδημία Αθηνών, Akadimía Athinón) is Greece's national academy, and the highest research establishment in the country. It was established in 1926, with its founding principle traces back to the historical Academy of Plato, and operates under the supervision of the Ministry of Education. The Academy's main building is one of the major landmarks of Athens.