This legendary urban waterfall creates a dazzling display of rainbows.

Watch the newest land on the planet form before your eyes.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

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

The legendary building that needed ghostly approval before being built.

The beautiful 1920 Pantages Theatre remains hidden just underneath the LA Downtown Jewelry Exchange.

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

A faux European lane smack dab in downtown L.A.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

Hand-crafted tributes to a stray cat named "Room 8" now cover this LA elementary school.

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

Small museum packed with artifacts recovered by the man rumored to be the real-life inspiration for Indiana Jones.

Magical-looking cottages that inspired one of the most famous animated films ever.

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

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

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

The house that birthed The Old Man and The Sea is now a museum devoted to the old man who wrote it.

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.

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

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

"X" marks the spot of an echo chamber in the middle of a plaza.