Athens subway Μετρό Αθήνας red line metaxourghio omonia

The Athens Metro (Greek: Μετρό Αθήνας, Metró Athínas) is a rapid-transit system in Greece which serves the Athens conurbation and parts of East Attica. It incorporates the former Athens-Piraeus Electric Railways (ISAP), which opened as a conventional steam railway in 1869, and which was electrified in 1904 and is now part of Line 1. Beginning in 1991, Attiko Metro constructed and extended Lines 2 and 3[3] and the Attiko Metro Operations Company (AMEL) operated these lines from 2000 to 2011.[4] The metro network merged in 2011 when the Greek government created the Urban Rail Transport Company (STASY), a subsidiary of the Athens Urban Transport Organization (OASA).