Temple of Isthmia is located in Greece

The Temple of Isthmia is an ancient Greek temple on the Isthmus of Corinth dedicated to the god Poseidon and built in the Archaic Period. It is about 16 kilometers (9.9 mi) east of ancient Corinth, at the site of ancient Isthmia. It appears to have been constructed in the seventh century BC though was later destroyed in 470 BC and rebuilt as the Temple of Poseidon at Isthmia in c. 440 BC during the Classical period.

• http://en.wikipedia.org/wiki/Temple of Isthmia