Hiding amid the largest camellia collection in the country lies a charming children's maze, donated by a secret admirer.

If you dial the number in this abandoned office window "Sam Spade’s" secretary will ask you to leave a message.

This 1920s masterpiece of French Quarter architecture hides a secret tunnel used by Albert Einstein.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

This hidden fire lookout offers spectacular views of Sequoia National Park.

A water tower shaped like a giant coffee pot looms over a small Swedish village in Central California.

Across Ring Mountain is a vast collection of Native American petroglyphs unique to the region.

A second generation sun-powered marvel lights up the night.

This California tree is the single source of the state's entire orange industry.

A lighthouse built to save lives that took quite a few with its treacherous location.

Chewing gum tycoon's memorial lies perched over wife's botanical gardens on Santa Catalina Island.

An unexpected and peaceful oasis on a hillside.

This nonsensical smiling boat shuttles passengers between two places they could've easily walked between.

The best place in the park to test out your throwing arm.

This simple highway curve has become a comedic pilgrimage site.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

A bright California graveyard with a decidedly dark side.

America's oldest Italian restaurant is a San Francisco institution.

More than 700 species live within this murky marvel of a swamp on California's coast.

One of the only known surviving coconut palm trees in the entire state.

A modest reminder of treacherous waters at the Golden Gate.

Over 300 taxidermied animals in a Californian restaurant make for a taxidermist's dream and an animal lover's nightmare.

This little gem of Spanish Colonial architecture has been abandoned since the 1950s.

Hidden beneath a lake for decades, this brutalist mine has now emerged from beneath the receding waters.