Take a drunken tour inside the world's largest known geode.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

"Looks so real, it's scary!"

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The first American axe throwing club.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Odd outsider art installations surround a Gold Rush-era ghost town.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The first declared National Monument in the United States.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

A winding path built in secret on the edge of the continent.

Beneath a Virginia City bar is the entrance to an abandoned gold mine.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

This super steep hike ascends 2,000 feet in less than a mile.

The watery grave of an impractical idea.

Make it an offering.

The United States Capitol's former columns still stand.