The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

Centuries-old bridges grown from tangled roots.

Lonely minaret stump of a destroyed city.

Glacial lake that mysteriously empties itself every year.

Time capsule of a museum, in which the Soviet Union remains alive and kicking.

A boulder carved into the shape of the cosmonaut's head.

Extremely isolated Silk Road caravanserai in the middle of nowhere.

No one is exactly sure why over a hundred lakes have formed amongst the tallest sand dunes on Earth.

The largest statue in the world towers at 420 feet high atop another 66 feet of pedestal.

Ming Dynasty necropolis raided during the Cultural Revolution.

Where the Great Wall of China meets the sea.

This abandoned fishing settlement may well be the greenest village in the world.

A natural arch offers panoramic views of Yangshuo's karst hills.

A tunnel dug through the side of a mountain by hand provides convenient yet death-defying access to a small village in China.

This Tang Dynasty behemoth is the biggest Buddha in the world.

The world's longest outdoor escalator takes visitors to the top of China's largest dam and is also shaped like a dragon.

Snow-capped peaks, colorful waterfalls and stunning vistas on the edge of the Himalayas.

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

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

270 million year-old forest of stone.

Not one, not two, but three natural bridges remain in this captivating spot post-sinkhole.

A part of the world's largest marsh seems to be growing bright red Martian grass.

Where the father of Persian poetry is laid to rest.