A self-funded cemetery with a long list of inhabitants.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

A wall of chewing gum moonlights as collective art.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

Every president in history is immortalized in bronze in downtown Rapid City.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

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

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

A sharp bend in a dramatic river canyon cut through red rocks.

Most-visited and most-photographed slot canyon in the American Southwest.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

Legends surround this jagged rock formation in the New Mexico desert.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.