Mysterious glowing orbs float through the desert night.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

The Grand Canyon of Texas.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A popular swimming hole that hides one of America's most deadly diving spots.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

Two hula hoops appeared on the tree after a storm, and the collection kept growing.

No one knows the origin of this small town’s unique name.

Piled high inside this warehouse and coffee shop are salvaged goods that span every corner of the globe.

The highest point in Iowa, while not that impressive to mountain states, has earned its own monuments.

This remote island in Iowa was abandoned after being devastated by flood.

While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

A mysteriously dark cemetery monument fuels stories and legends galore.

The remains of a bustling turn-of-the-century park built to showcase the wonders of electricity.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

Like Mars, but much closer.

This hidden stone has absorbed decades of human anxiety.

An early-19th-century hotel with a past that is steeped in the Civil War.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.