Chachapollas, Peru
Photo Features • World Hum • 03.02.09 | 1:18 PM ET
REUTERS/Pilar Olivares People walk at the entrance of the Kuelap Fortress, 9,840 feet above sea level, in the Andean region of Chachapollas. The archaeological site of Kuelap, constructed by the Chachapollas pre-Inca culture in about 800 AD, is a massive exterior of stone walls that rise up to 62 feet and contains more than four hundred buildings.
REUTERS/Pilar Olivares