This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A blacklight journey through a celestial art exhibit.

A museum dedicated to the alleged Roswell Incident.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A Prada store in the West Texas desert that is never open for business.

This exaggerated sculpture resembles a well known feature of Vancouver:

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

Approximately 250,000 people left homeless by the great earthquake and fires found shelter in Golden Gate Park.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Wisconsin's most celebrated export gets the royal treatment on I-94.

Sculptures, jams, and the wild west collide at this folksy retreat.

The first KFC is on the National Register of Historic Places.

The romance of early commercial flight still fills this Art Deco destination.

The iconic statue was moved to a new spot overlooking the James river after several years as a mascot for the local baseball team.

An exotic wildlife habitat right off The Strip.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Largest Roman Catholic church in North America.

The walls of the iconic dome are hollow and have a secret stairway.

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

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.