Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

Thousands of locks professing undying devotion line the metal chains of Lotus Peak.

This historic Chinese tower was said to have been haunted by fox spirits but is now haunted by a grisly murder.

Forgotten German bunkers in China create a sharp cultural contrast.

This terrifying glass bridge on the side of a mountain cracks as you step on it.

At nearly 1,000 feet long, this astonishing glass suspension bridge is one of the longest in the world.

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

A bright and wacky exhibit answers every question you may have had about human excrement, flatulence, and more.

The history of the plush toy and South Korea collected under one roof.

This former coal mine has been turned into a sprawling modern art complex.

The abandoned hospital whose elaborate ghost stories cover up the dirty truth - an uneventful sanitation issue and other mundane reasons for its demise.

A 32-acre fun park dedicated to all things cheese.

Plenty of old carney magic still haunts this photogenic amusement park.

A secret passageway from World War II is now a quirky pedestrian shortcut.

Visit this church that's shaped like a giant glass pump either to cater to women or to reference a tragic local tale. Or both.

Looking for a crappy restaurant? Pull up a porcelain bowl and enjoy your meal.

The world’s largest work of glass art hides in this stunning Taiwanese subway station.

Nova reconstruction of the bridge that baffled engineers for years.

This Cold War–era underground city includes offices for Mao Zedong and Lin Biao.

This top secret Chinese military megaproject is the world’s largest human-made tunnel structure.

Rainbow-hued in the summer and crystalline in the winter, this salty lake has inspired battles, temples, and plenty of awe.

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

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