Hadrian's Arch - a monumental gate, somewhat reminiscent of the famous Arc de Triomphe in Rome. Is this building in Athens on Prospect Amalis.

Arch was built in 131 AD in honor of the Roman Emperor Hadrian in the ancient road that led from the center of Athens, or rather, his old neighborhood of Plaka, in a complex of buildings east of the city, among whom was the temple of Olympian Zeus (Olympic Zeus). It is not known exactly who ordered the arch, and who was engaged in construction and design, although most likely it was the citizens of Athens.

On the wall in the middle of the ceiling on both sides carved two inscriptions calling, and Theseus of Athens and Hadrian's founders. From the Acropolis inscription reads "This is Athens, the ancient city of Theseus." From the Olympeion inscription indicates that "It is the city of Hadrian and not of Theseus". Researchers believe that the arch of the city divided into old and new part. There is a second version, according to which, the inscription on the part of the new town testifies to the special role of the Roman emperor in the life and development of Athens, for which the grateful townspeople decided to perpetuate the memory of it. The new part of the city became known as Adrianapolisom.

Arch height 18 m, width 13, 5, and the depth of 2 to 3m. It was built of white Pentelic marble, which was used in the construction of many buildings of Athens, such as the Parthenon and the Panathinaikos Stadium. Although it should be noted that the arch was used marble of lower quality, with various impurities. This arch was carved from a single marble, without the use of cement and other building mixtures. Some parts of the structure were fastened with special brackets special design. Arch is completely symmetrical relative to the central opening.

In 2006-2008 it was reconstructed this historical monument.