In 1911, local farmers in Peru led American explorer Hiram Bingham to the ruins of Machu Picchu, an Incan city built high in the Andes Mountains, introducing the outside world to this architectural ...

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.

A few reputable companies include Aventours, PeruTreks, Llama Path and SAS Travel, but there are dozens more. You can find a list here, along with tips for visiting Machu Picchu. No matter which ...