Banksy's image of a naked man dangling from the window of a sex health clinic.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.

An array of ancient artifacts from Bronze Age Bristol and other civilizations are housed in this museum.

The Bristol Camera Obscura housed in an ancient windmill.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

This "floating railway" is one of the world's oldest monorail systems.

Largest illuminated advertisement sign in the world.

This 11th-century castle sits so low you can't see it behind the surrounding buildings.

A unique work of automotive art calls this shopping center home.

An ancient Egyptian temple sits within a modern European museum.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

This futuristic German television spire is actually the world's largest digital clock.

Preserved "bog person" that is over 2,000 years old.

This inverted metropolis model is the artist's "revenge" for not being allowed to have a doll house as a kid.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

Copenhagen's celebrated theme park and gardens.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

The fading, forgotten remains of a once bright and booming factory.

This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.

America's only nuclear missile silo open to the public.

This church on a Tohono O'Odham reservation has stood since 1797.