Hadrian's arch was constructed in 131 AD by Hadrian, a great builder and one of the great Roman Emperors to separate the old and new cities, marking the edge of the classical one and the beginning of his own. The whole monument is made of Pentelic marble. The central opening of the gate is supported by pillars crowned with Corinthian capitals. The arch is crowned by series of Corinthian columns with Ionic cornice at the ends, and a structure with a triangular pediment in the middle. The 18-meter arch has two inscriptions - the side towards the Acropolis reads "this is Athens, the ancient city of Theseus". On the other side reads "this is the city of Hadrian, and not Theseus". (Athens, Greece / 2006)
