060611_red_pic_023
May 21-June 6th, 2011. Peru, on a 100 year anniversary of Machu Picchu's first publication in the National Geographic, a 10 day expedition sets out to trace the explorer Hiram Bingham's path to Inca's most sacred city. Here, the southern farming terraces with a temple where the Incas planted herbs, flowers and extensive variety of vegetables at the complex of Choquequirao. Piotr Redlinski for The New York Times.