Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

The oldest surviving botanic garden in the United States.

One of America's first spies started out as a teacher in this little red one-room schoolhouse.

A monument to the military service of America's greatest traitor refuses to even name him.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

In memory of the 110 victims of ValuJet Flight 592 that crashed in the Everglades.

Located within a historic park, the beacon is the oldest standing structure in Miami.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

Largest Roman Catholic church in North America.

Belly up to the bar in Cowtown, don't forget to buy some boots.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The United States Capitol's former columns still stand.

Washington's iconic carousel has a nice piece of Civil Rights history.

The beautiful, fruit-covered facade hints at this building's former life.

Just a man taking his prehistoric pet for a stroll.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

This abandoned prison castle has become an imposing gallery of graffiti art.

This hidden labyrinth offers walkers some brief peace of mind.

A men’s restroom became a sandwich shop.

The only rotating bar in New Orleans has been slowly spinning since 1949.

This small museum concentrates on the juicy history of orange production in Florida.

Frank Lloyd Wright built this suburban synagogue late in life, but it stands among his most iconic masterpieces.