The show pony of cave systems, Fantastic Caverns manages to live up to its name.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Official museum, hall of fame, and repository of the Texas Rangers.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

This two-room shotgun shack in Tupelo is the birthplace of a King.

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

At the "Garage Mahal" in Houston, car culture is about more than just driving.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

A museum chronicling pioneer life constructed over Interstate 80.

A unique botanical garden housed in three giant geodesic domes.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

A place to eat for on-the-run agents and espionage enthusiasts.

This striking art museum holds an amazing series of curiosity cabinets.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

Statue dedicated to the star of an old television show.

At 207 feet, one of the world's longest continuous escalators.

A building so large that it has its own weather.

A vertically floating hemlock controls the waves and weather at Crater Lake.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.