The Inca Empire in South America, one of the most powerful pre-Columbian societies, was known for many innovations — such as the architecture of Machu Picchu, an extensive road network, and a system ...

The Inca recognized the importance of guano and the islands where the so-called guano birds breed as central to the survival of their civilization — and they responded by implementing the first ever ...

A groundbreaking discovery by archaeologists brings the latest developments regarding the Inca empire's elites, with a bathhouse seen in the Peruvian Andes region. The researchers claimed that this is ...

This story appears in the April 2011 issue of National Geographic magazine. On the remote Peruvian island of Taquile, in the middle of the great Lake Titicaca, hundreds of people stand in silence on ...

A cotton and agave fiber Inca khipu is seen at an exhibit at the Smithsonian National Museum of the American Indian in 2015 in Washington, D.C. (Brendan Smialowski | AFP via Getty Images) The Inca ...

Inca society kept records by encoding information into knotted cords called khipu. A new analysis of hair woven into these cords suggests this... A lock of hair may have just changed what we know ...