This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

One of the largest helium balloons in the U.S. is a 112-foot ginormous orange.

A small sculpture garden that provides a microcosmic representation of California.

A long-vacant Scottish Rite temple in Hollywood has been converted into an art museum filled with Masonic relics.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The blinking light atop the iconic landmark has been sending secret messages for decades.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

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

A multimedia experience that chronicles the atrocities of racism.

The final resting place of a space program monolith.

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

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

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.

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

The legendary building that needed ghostly approval before being built.

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

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.