One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The final resting place of New Orleans' most famous voodoo priestess.

Historical figures from New York City's Catholic community reside in Midtown.

The world's longest known cave system.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

More than 100 years after his death, the world's largest steer is still attracting crowds.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This spectacular track has run continuously since 1882.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

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

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

A wealth of pop culture statuary and green chile dishes give this roadside restaurant clout.

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

This is one really big nut.

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

A blacklight journey through a celestial art exhibit.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.