Nearly 500 years after the collapse of the largest empire in the Americas, a single bridge remains from the Inca's extraordinary road system – and it's rewoven every year from grass. "I believe since ...

Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. Terence D'Altroy: It was about 2,400 miles from north to ...

The ancient Inca wonder of Machu Picchu, perched 8,000 feet above sea level on a ridge in the Peruvian Andes, was a royal estate for the legendary warrior Pachacuti, who was largely responsible for ...

The Inca Empire was a marvel of its time. The rulers managed to conquer territory from Colombia to Argentina and Chile, spanning the mountain ranges, coastlines, jungles and plains of six modern day ...

For centuries, the vanished Inca fortress of Ancocagua existed only in lore. Now, at a mountaintop site in Peru, researchers are zeroing in on a discovery that could reshape what we know of the empire ...