1. Petra, Jordan
Country: Jordan
Civilization: the Nabataeans
Inhabited: sixth century B.C.
This rose-colored city carved from cliffs garnered fame in the West thanks to the 1980s blockbuster Indiana Jones and the Last Crusade.
2. Chichen Itza, Mexico
Country: Mexico
Civilization: the Mayans
Inhabited: 600 to 1000 A.D.
Site of one of Mesoamerica's largest ball courts, this royal city is located near a massive underground cenote, or sinkhole, where the bodies of human sacrifices were dropped.