It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

The legendary building that needed ghostly approval before being built.

This impressive tunnel was dug entirely by hand over the course of 36 years.

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

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

Abandoned anti-ballistic missile base.

According to legend it was a nap taken under this tree that kicked off the California Gold Rush.

Gouged in the mountain to make stage coach access easier through the Fremont Pass.

Wild West history in Hollywood style.

A unique set of caves that spits waves back out into the ocean.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.