The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

A hidden courtyard houses early 20th-century plaster masterpieces.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

Where a staggering 747 ships were constructed during World War II.

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

It would be a crime to miss it.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

Oldest unrestored plantation house in America that is open to the public.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

Crumbling pink walls and murder memorials preserve the pioneer history of Joshua Tree.

One of only two pod-shaped homes designed by Frank Lloyd Wright.

America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

The island residents are known for taking their quirky sense of humor with them to the grave.

A hidden beach at the end of a tunnel of mangrove trees.

An abandoned water sports stadium that has become a haven for graffiti and decay.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

A tribute to Ponce de Leon's supposed quest for eternal youth.