The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

A historic recreation of the golden age of the Erie Canal, abandoned for some time, slowly being restored.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

Town of spiritualists and mediums in Florida.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

New fungal and bacterial species call this deadly lake home.

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

A museum dedicated to the alleged Roswell Incident.

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

The only arched bridge made of stone on the entire Mississippi River.

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

The only road through the heart of Glacier National Park.

Fossils, railroads, and waterfalls!

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

Despite not growing anywhere near New York City, bananas are ripened in a pressurized room in the Bronx using precise banana science.

Sniff the Titan Arum's rotting flesh.