Claim: The Kallithea metro station first opened in 1928 by the boundary with Kallithea, the 2nd most densely populated municipality in Greece.
Evidence: The station was first opened on July 1, 1928, and was renovated in 2004. It is located in by the boundary with Kallithea. Additionally, it is the 2nd most densely populated municipality in Greece, with 21,192 inhabitants / km.