A unique collection of diving equipment spanning antiquity to the present day.

These winding paths and vertical ramps have been inspiring skateboarders for nearly half a century.

A sprawling maze of used books piled from floor to ceiling.

The strip club's VIP lounge is actually a rare repurposed Futuro House.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

The world's longest known cave system.

This popular park is home to a sea serpent sculpture that now overshadows the twisted history of its creation.

These structures were inspired by both Native American shelters as well as, strangely, an ice cream shop.

One of the few surviving "Wigwam"-themed motels.

Where beautiful signs live on forever.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The fifth-longest natural arch in the world, and the longest outside China.

When ecosystems collide in the arid Southwest.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A notorious Route 66 eatery once frequented by Al Capone.

Less a museum than a bizarre fantasy world created by artists and engineers.

Giant works of art interspersed throughout meadows and woodlands offer a new discovery at every turn.

Famous church recognized for both its unique design and disciplined monks that live according to the Benedictine discipline.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

Internationally known record store and purveyor of "dusties."

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

While he no longer has an eatery to give him context, this off-brand Paul Bunyan still holds his giant hot dog with pride.

This folk art compound was built by a fortune teller on the advice of three people from the future.

This ghost town houses the remains of Alabama's old state capital.