A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

Tiki luxury on Nob Hill.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Explore 10 acres of environmental sculptures.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

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

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A strange house built only at night, with rumored mystic inspiration.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A hotel and restaurant serving as the mecca of kitsch.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Towering basalt columns, a creation of fire and ice.

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

A hand-built folk art installation covered with messages of God's love.

A winding path built in secret on the edge of the continent.

One man's homage to the sun continues to grow like a glass fractal.

The ghostly remains of an accidental sea.