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

This shop specializes in oddities and Victorian-inspired wonders.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A free library to stumble across, one of many placed worldwide if you know where to look.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

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

An homage to everyone's favorite prehistoric cartoon family.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

See massive fossils that are over 200 million years old in northeastern Arizona.

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

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

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

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

First LEED-certified gas station in the United States.

A "haunted" landmark on the coast of Southern California.

A collection of 20th-century automata, penny arcade games, and musical contraptions.