Art Deco stylings conceal the true nature of this bridge.

A strange house built only at night, with rumored mystic inspiration.

A huge musical instrument played by the ocean.

A Hawaiian stairway to heaven—that you can't climb.

A glass display case holds the document that ended the Second World War—which one person signed on the wrong line.

A unique set of caves that spits waves back out into the ocean.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

San Francisco's newly reopened hands-on science museum.

At this 1940s-era neighborhood favorite, you can still drink a cherry phosphate.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

A working miniature city designed to teach kids about safety and presumably city planning.

The California capital city once stood 10 feet lower than it does today.

I Street Bridge is the heaviest swinging center bridge in the United States.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

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

A taste of Middle Earth, in the middle of the Bayou City.

The celebrated eyesore created by starry-eyed sweethearts.

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

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

A little sculpture with a large wardrobe.

The largest fountain in Bratislava.

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