To the casual observer, they appear to be little more than multicolored tangles of arm-length strings. But a growing number of experts think "quipus" may hold the secrets of the Inca Empire. The Incas ...

The Incas—a civilization that ruled over vast swathes of South America's Andean region in the 15th and 16th centuries—intentionally built Machu Picchu, and other cites, in a location where tectonic ...

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Machu Picchu, the "lost city of the Incas," was not a true city but rather a pilgrimage center symbolically connected to the Andean vision of the cosmos, an Italian study has concluded. Subscribe to ...

In the 16th century, the Spanish conquistadors reached the town in the majestic Andes mountains that served as the political seat of the sprawling Incan Empire. For over three centuries, the Incas had ...

Global warming is not necessarily always bad. A 400-year warm spell in South America fueled the Incas’ rise, British archaeologists reported Monday, helping them build the largest empire that ever ...

The growth of the Inca Empire can only be described as meteoric. Though precise dates for its beginnings remain elusive, the realm known to the Inca as Tahuantinsuyu, or "The Four Parts Together," ...

Sacred Valley of the Incas, Peru in 4K Ultra HD Inca and pre-Inca ruins in Sacred Valley and South Valley, Peru. The Sacred ...

LIMA, Peru — In a dry canyon strewn with the ruins of a long-dead city, archaeologists have made a discovery they hope will help unravel one of the most tenacious mysteries of ancient Peru: how to ...

A study found the first archeological evidence that the Incas used ayahuasca. A new analysis found traces of the drug in the hair and toes of mummified children sacrificed in rituals. It may have been ...