A frozen oasis lies beneath the scorching New Mexico desert.

A 21-foot-tall statue of a miner made of scrap metal stands in this West Virginia coal town.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

How did a massive marine arthropod find its way to landlocked Ohio?

Rare recess caves fill this unbelievably beautiful Ohio park.

The largest earthwork effigy in the world.

During World War II, blimps were a key part of the United States' defense against German U-boats—this building could house a dozen of the armed airships.

The Cadillac Ranch for monster truck aficionados.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

This old-fashioned carhop restaurant gave the world the waffle cone.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

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

A total of 14 men held the title of "president" before George Washington—their historical legacies are enshrined in the lobby of a hotel.

Acres of English cottage gardens, unexpectedly nestled in a Cleveland suburb.

Faces carved into the cliffs create an otherworldly walking trail.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

A potpourri of rocks, fossils, and crystals is rounded out by a dinosaur garden and a 15-foot great white shark.

This former fire tower is now a rustic observatory that offers amazing views of eagles, hawks, and the Appalachian Mountains.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

This colorful West Virginia cowboy greets passersby with a glassy stare.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.