A modern mechanical planetary system, part of a 10,000 year clock.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

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

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

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

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

A 140-year-old castle with underground caves hidden in San Francisco.

A psychedelic labyrinth on the San Francisco bay.

Travelers exchange letters with woodland creatures at this mini post office.

An essential stop before plundering, BYO Cutlass.