When the rain falls, this drain system turns into a musical instrument.

A church of bones, decorated with 40,000 human skeletons.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

A private home built to resemble the shape of a microscopic creature.

A remote crossroads honoring a fallen talent.

340 bicycles, 65 feet high.

A hotel and restaurant serving as the mecca of kitsch.

An alley covered with 20 years of bubble gum.

Furniture tries to escape an abandoned building in San Francisco.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

60 feet of towering steel balances gracefully.

A multimedia experience that chronicles the atrocities of racism.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

Historic funicular railway, believed to be the shortest railroad in the world.

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

The legendary building that needed ghostly approval before being built.