This ancient Chinese observatory still contains early astronomy technology.

Hidden behind musical flora and forgotten for over a thousand years, this cave is now a neon dream.

Ming Dynasty necropolis raided during the Cultural Revolution.

270 million year-old forest of stone.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

An Inca spa, military outpost or maybe… both?

These ruined Incan mausoleum towers still bear carvings of sacred animals on their blocks.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

An abandoned Incan construction project left behind a mysterious "doorway."

This stone complex marks the urban center of a lost civilization.

The Uros people live on floating reed islands in lake Titicaca.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.

The large collection of pre-Columbian pottery might make you blush.

One of the few working locomotive roundhouses in the United States.

Ecuador’s historic seat of government has been quietly looted in recent decades, and no one knows how or by whom.

Crumbling necropolis set high above Fez.

The oldest known university in the world is in Fez, Morocco.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

Traditional 11th-century outdoor tannery.