Search for the Lost City of Gold Flamholc. The History Channel summary: "In the 16th century, Spanish conquistadors swept through Peru in search of great golden treasure. But when they stormed the Incan stronghold of Vilcabamba in 1572, they found the city deserted, burned, and stripped of its wealth. Legend says that the Incas had retreated deep into the jungle and built another magnificent city in an inaccessible quarter of the cloud forest. For more than four centuries, explorers, adventurers, and archaeologists have searched for the gold and riches of the Incas. Now, we follow Tahir Shah, who teams up with Pancho, a Machiguenga warrior who claims
Machu Picchu were not perfect, as studies of the land show that there were landslides that happened during the construction of Machu Picchu. It can still be seen where the terraces were shifted by landslides and then stabilized by the Inca as they continued to build around the area. It is estimated that the area around the site has received more than 72 inches of rain per year since A.D. 1450, which was more than needed to support crop growth there. Because of the large amount of rainfall at Machu Picchu, it was found that irrigation was not needed for the terraces.