Location: Syntagma The Arch of Hadrian in Athens, Attica: The Arch of Hadrian is a triumphal arch which lies in a walking distance from Syntagma square, right between the rock of the Acropolis and the temple of Olympian Zeus. On the northwest, this monument faces the Monument of Lycicrates in Plaka. The construction of this temple started in 131 BC to celebrate the arrival of the Roman Emperor Hadrian and to thank him for his benefactions for the city. Source: www.greeka.com