A museum dedicated to the alleged Roswell Incident.

Decommissioned experimental solar facilities that pioneered solar energy technology.

A world-class observatory in the California desert.

Oldest building in California still in use.

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

Remains of a Greek freighter trapped off of Rocky Point in 1961.

Sports history, made in the Arroyo Seco.

A Masterpiece with a Tragic History.

America's most famous piece of self-built architecture.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

Historic funicular railway, believed to be the shortest railroad in the world.

Tucked in the back of this amazing antique store is an important piece of medical history.

The site of the deadly Triangle Shirtwaist Factory Fire.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

The Los Angeles flood disaster that took 400 lives and ended the career of William Mulholland.

A Roman-inspired temple once controlled half of San Francisco's waters.

Thousands of turbines whir at the origin of North American wind power.

Towering basalt columns, a creation of fire and ice.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

A miniature city built by a single hunchbacked monk.