An exotic wildlife habitat right off The Strip.

The Cadillac Ranch for monster truck aficionados.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

This replica of the Greek structure is in the heart of Nashville.

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

A tribute to Ponce de Leon's supposed quest for eternal youth.

This ancient octopus-like tree was saved from destruction thanks to shady reporting.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

Yo, Adrian!

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

World's first "penitentiary," meant to be humane, drove men insane.

Explore the dark underground corridors of this graffiti-covered former military fortification.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

Turns out you can see the world without ever leaving Maine.

This 19th century granite fortification is one of the most well preserved forts in New England.

The world's largest rotating world.

A 60-room castle constructed by a horse-racing heir.

Exact replica of the ancient monument, but much, much lighter.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.