This enormous World War II relic is one of the largest wooden structures in the world.

The Route 66 institution that inspired Taco Bell also served as an important headquarters for Mexican-American social movements.

This temple, built by an eccentric religious leader before his death, sits guarded and in ruins.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."

This giant spider sculpture made from the iconic car is one giant visual pun.

Hike amid the palm trees that thrive among Southern California's Indio Hills.

The decaying adobe remains of an old homestead are just off the beaten path in Joshua Tree National Park.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

This ramshackle ghost town is comprised of mining-era buildings collected from around the region.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

The hundreds of movies and television shows shot in this high desert town are commemorated in a unique museum.

"Prepare yourself! You are to become the voice of Interplanetary Parliament."

Pizza joint known for labor-inducing salad dressing.

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

Though the original building has been demolished, these massive bronze doors were saved.

This vintage car parts store is also a museum devoted to a squat little gem of automotive history.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

One of the last full-orchestra recording studios in New York City and an acoustical marvel.

A bit of retro transportation flair preserved in the world's largest department store.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Read a book next to a Midtown waterfall.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

Elevated freight railway turned wildly successful urban park.