A cemetery housing wild west legends in South Dakota.

The first declared National Monument in the United States.

The only castle in North America to ever house European sovereigns.

Inside this mountain lies several kilometers of breathtaking caves.

Ancient pueblos built into the base of a natural canyon wall.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

This short pedestrian span is also known as the "Fairy Walking Bridge" because it looks almost magical.

The once highest point in China blends symbolic design with a kick of adrenaline.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Abbey built on the ruins of Roman catacombs.

Swiss vineyards in a UNESCO heritage site.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

A Spanish town built into the cliffs.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

A small but immensely extravagant palace built by the "Night King."

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

Ming Dynasty necropolis raided during the Cultural Revolution.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

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

Natural arch offers panoramic views of Yangshuo's karst hills.

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

Comprised of thousands of cave temple carvings this cornucopia of ancient Chinese stone art is unrivaled anywhere in the world.

The ancient settlement attracts tourists from all over looking to learn about the Chinese vision of the afterlife.