Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

This eagle-topped spire remembers the military commander who snatched up California for the United States.

The first safe in this California town had to hold all the gold.

This remarkably simple jail went over a century without an escape.

A tree grown from astronaut seeds which were exposed to cosmic rays.

Antiques by the Bay.

The seamy, underground secrets of Portland's criminal past.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

A giant chess set, minus the psychedelic drug trip.

The world's most famous donkey lives in this pen.

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

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

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

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

Subterranean house made out of a grain silo, located in the Santa Cruz Mountains.

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

The world's first permanently occupied mountain-top observatory continues to report on the stars.