Zappeion Mansion is one of the most significant buildings in Athens, a historical heritage of the Greek civilization. Its construction was funded by national benefactor Evangelis Zappas and it was completed in 1888.
The building had been initially designed by François Boulanger, whereas in 1869 Greek architect Anastasios Theofilas was called upon to change its design. After some delays, Zappeion’s cornerstone was laid on 20th January 1874. In the late 1880s Konstantinos Zappas (cousin of E. Zappas) assigned architect Theophil Hansen to create a new design. The building was eventually inaugurated with all due pomp on 20th October 1888.
Zappeion was the first building ever to be constructed globally in order to serve needs of the Olympic Games. It was used as the main Fencing Hall during the first modern Olympics in 1896 and a decade later as the Olympic Village for the 1906 Olympic Games. During the 2004 Athens Olympic Games it was used as the Olympic Media Center.

On 22nd March 1961, following a radical renovation in view of the centennial anniversary from the signing of Evangelis Zappas’ Will, the renewed building was inaugurated by the then Prime Minister, Konstantinos Karamanlis.
Zappeion has about 25 halls (between 97m2 and 984m2). Its architecture is in the neoclassical order, with a Corinthian portico, and an organization of spaces that is fully in harmony with the purpose for which it was built.
A number of historical events have taken place at Zappeion; the signing of the Treaty of Greece’s Accession to the EEC on 28th May 1979, by Konstantinos Karamanlis. Also, from the era of Metapolitefsi –the regime change beginning in 1974– and on, Zappeion has been the press center in all national election held so far, where both victors and the defeated give the long-established post-election press conference.