Church of the Holy Apostles

The church is particularly significant as the only monument in the Agora, other than the Temple of Hephaestus, to survive intact since its foundation, and for its architecture: it was the first significant church of the middle Byzantine period in Athens, and marks the beginning of the so-called "Athenian type", successfully combining the simple four-pier with the cross-in-square forms. The church was built partly over a 2nd-century nymphaion, and was restored to its original form between 1954 and 1957.