This large pile of traveler-curated rocks by the dry lakebed is a longstanding tradition on the Old Mojave Road.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

Only ruined buildings and abandoned charcoal kilns remain of this once bustling Wild West boom town.

A grove of "candelabra redwoods" deep in California's Lost Coast.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

This giant temperature attraction created some giant electric bills.

This former Mormon settlement is reemerging from the receding waters of Lake Mead.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

This old selenite mine is dotted with tiny crystals that make it shimmer like it's covered in glitter.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

A tunnel with windows, so you don't miss out on the impressive views.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Not your typical pet cemetery.

An improbable waterfall springs from an orange-white cliff face, tumbling into the headwaters of the Virgin River above Zion National Park.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

A cemetery full of touching tombstones from a community of railroad workers, uranium miners, and Cold War missile launchers.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

The man who was president for only one day and spent most of it asleep.

A monument to the frontier doctor who came up with the idea of delineating highways with a painted line.