This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Former hunting lodge of a duke who was an avid collector of impressionist works.

Christ's blood preserved in a Belgian town.

This unusually circular centenarian barn became a Route 66 icon.

Nature's biggest mammal swims in landlocked Oklahoma.

A house built from trash known as the poor man's Hearst Castle.

The unbelievably opulent home built for an infamous newspaperman.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

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

Home of the International Space Hall of Fame.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

What is the Thing?

An urban laboratory.

Homemade outdoor church and sculpture garden decorated with glass shards.