An icy lake tucked among jaw-dropping alpine panoramas.

One of the greatest maze designer’s greatest mazes.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A theme park made of glass, from the gleaming books on the shelves to the crystal fish in the mirror lake.

South Korea's love of the silly photograph is on full display at this goofy collection of trompe l'oeil paintings.

9,000 years of carnal history is on display at China's original Museum of Sex.

Beijing's version of Disneyland, completely abandoned, mostly destroyed.

A golden temple atop a sacred mountain, known for its giant effigy of the revered Pu Xian.

China's beehive-shaped pyramids house the remains of a lost kingdom.

This Tibetan monastery has survived multiple attacks and is also a sky burial site.

It took an artist 20 years to create this sprawling sculpture garden honoring the area's ancient inhabitants.

Walled family complexes in Southern China.

Sited in an Inner Mongolian desert are the remnants of an important trade stop along the Silk Road.

Thanks to the building of a life-giving reservoir, part of the Great Wall of China is now a dive site.

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

The world's largest statue of Mao Zedong looks out over the city where he discovered Communism.

A bright turquoise river cascades beautifully down stepped terraces in southern China.

Enormous burial mounds of ancient emperors.

A lush desert oasis in the shape of a narrow crescent.

China’s breathtaking futuristic library is lined floor to ceiling with fake books.

Rivers of cattle blood gone, a strange Escheresque building remains, the last of its kind.

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