The highest bridge in America was built for an almost unnervingly small amount of money.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Quite simply the largest tree in the world (by volume).

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

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

Bronze statue marks the spinach capital of the world.

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

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

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

The only diamond mine in the world where you can keep what you find.

Where animatronic singing fish go to retire.

A beautiful South Korean gate and garden in Little Rock honors American Taekwondo.

Walk through row upon row of manicured miniature trees at the United States' largest bonsai nursery.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

This colonial cabin is the oldest building in High Point, built by one of the first settlers in the area.

This roadside attraction has been serving out its fair share of hearty folklore and chaos since 1858.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.