Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

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

A slice of central Asia in the middle of Berlin.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

This tiny museum's sizable collection is jammed into a former underground public toilet.

The largest whale museum in Europe allows visitors to walk among life-size giants.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

This historical Netherlands fortress still bears the marks of its single siege.

Japanese national treasure originally built in 593 CE.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

An eerie reminder to the horrors of World War II.

Surreal giant face-pillars welcome visitors from across the globe to this hotel.

Hot springs monkey spa in the middle of Hell's Valley.

These sculptures were created by a 17th-century artist who had never seen an elephant.

See no evil, hear no evil, speak no evil.

Is this cat asleep or just pretending?

Built by the Portuguese colonists in the early 16th century, this fort is one of the oldest European structure in Asia.

A ring of soy sauce bottle bases decorate an important Singaporean landmark.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

A bit of retro transportation flair preserved in the world's largest department store.

World-famous, Pink's still manages to keep its prized cult fetish status.