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

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

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

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

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

A giant donut stands as a popular symbol of Los Angeles iconography.

A shrine to a skeleton saint in the city of angels.

The unbelievably opulent home built for an infamous newspaperman.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

A psychedelic labyrinth on the San Francisco bay.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

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