Take a tour of Agrigento Ruins in Italy – part of the World’s Greatest Attractions series by GeoBeats. Sicily's "Valley of the Temples" holds an astonishing array of ancient Greek ruins. The remains of temples built around 600 BC stand largely intact. Catacombs lie in the excavated foundations of this sacred site. Doric columns stand untoppled at the Temple of Hercules. A statue of Telamon lies outside the Temple of Zeus. Years of plunder and quarrying have left some ruins in pieces. The Valley is now a protected national monument and a World Heritage Site.