Claim: Machu Picchu was part of an empire in pre-columbian America.
Evidence: Machu Picchu -LRB- -LSB- ˈmatʃu ˈpitʃu -RSB- -RRB- -LRB- Machu Pikchu -LSB- ˈmɑtʃu ˈpixtʃu -RSB- -RRB- is a 15th-century Inca citadel situated on a mountain ridge 2430 m above sea level.
The Inca Empire -LRB- Quechua : Tawantinsuyu , `` The Four Regions '' -RRB- , also known as the Incan Empire and the Inka Empire , was the largest empire in pre-Columbian America , and possibly the largest empire in the world in the early 16th century.