8. Ephesus, Asian Turkey
Ephesus was a Greek city on the Ionian coast of Asian Turkey that was inhabited for 500 years, starting in the 10th century BC. Unlike the other ruins on this list, Ephesus is a whole city. The ruins contain dozens of temples, fountains, libraries and streets, all preserved in impressive shape. The amphitheater, in particular, was large enough to be comparable to a small, modern stadium.