Machu Picchu is a 15th-century Inca citadel. It is built on a 2,430-meter (7,970 ft) mountain ridge in the eastern Cordillera of southern Peru. It is located in the Machupicchu Region in the Urubamba Province above the Sacred Valley, 80 kilometers (50 mi) northwest of Cusco. This geography, including the Urubamba river, is surrounded by […]