This article was originally published on mentalfloss.com as 13 Amazing Facts About Machu Picchu. Alternately defined as a sanctuary and a citadel, Machu Picchu was constructed sometime in the mid ...

Machu Picchu is the granddaddy of archeological sites ... All trekkers must go with an organized group or guide; Llama Path and Alpaca Expeditions are popular, reputable options.

Here’s a cool fact to share with children visiting Machu Picchu in Peru—the place probably would never have been discovered without the help of a kid just like them. You see, after two years ...

Inca mastery of landscape and environment is epitomised at Machu Picchu, their most famous ruin. Many archaeologists believe Machu Picchu was a summer retreat for the emperor and his family.