A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

This historic national park is covered in the stunning ruins of red rock pueblos.

A reproduction of earth's many biomes.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

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

The arch that celebrated the completion of the Lincoln and Victory highways.

This dry lake bed contains the oldest known petroglyphs in North America.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

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

Singing sand that stands as the final remains of an ancient lake.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

An eatery for UFO seekers on the Extraterrestrial Highway.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

A lush green oasis in the middle of Chicago.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

The largest known Ancient Egyptian obelisk.