Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Venue for strange sideshow displays and musical acts.

Shop selling 500 flavors of soda has something for everyone.

Resting place of Hollywood's immortals is also site of summer film screenings.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Historic funicular railway, believed to be the shortest railroad in the world.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

A museum dedicated to the alleged Roswell Incident.

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

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The remains of a foundry and old blast furnaces destroyed during the Civil War are preserved in this central Alabama park.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

This ghost town houses the remains of Alabama's old state capital.

These ruins are all that's left of the former Alabama State Capitol.

Come for the boats, stay to explore the intriguing assortment of art.

Alabama has a fiberglass Stonehenge. With apologies to Spinal Tap, this one is full-size.

Every last book in this bookstore is signed by the author.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.

148 feet long and in the middle of a verdant forest.