A clear blue swimming hole with hidden caves, still unexplored.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

A historic ghost town still worth a visit.

A fitting attraction for the corn capital of the world.

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

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This interpretive path lets you get up close and personal with dinosaur bones.

The haunting ruins of Jack London's dream house.

The fossilized remains of ancient California redwoods.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

The site of an underground detonation of a megaton nuclear bomb in the middle of the Mojave Desert.

A local dialect born in the late 19th century is only spoken in this isolated California valley.

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

A ghost town at the airport is now a refuge for blue butterflies.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

World-famous, Pink's still manages to keep its prized cult fetish status.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

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

This weird abode has inspired everything from the "House on Haunted Hill" to a robot hunter's pad.

America's most famous piece of self-built architecture.

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

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