Hidden beneath a lake for decades, this brutalist mine has now emerged from beneath the receding waters.

A magnificent, reportedly haunted mansion built for a composer by Spiritualists.

A huge collection of rocks, gems, and crystals.

This California estate was either haunted by ghosts or the Marx brothers.

The home of one of California's most important horticulturalists wilts amidst a lovely park.

The Mighty Wurlitzer organ continues to belt out the tunes at downtown El Segundo's historic home for silent and classic movies.

Thirteen trees representing the original thirteen colonies were planted with soil from historic Revolutionary battlefields.

A small, peaceful sculpture garden with a grim memorial to a disaster that took place a few blocks away.

27-room home built with the fortune of a sugar magnate.

At this deceptively beautiful beach, nothing is what it seems.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

Each winter this underground cave forms a dazzling ice palace.

Spend a day hanging out with domesticated Russian foxes.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

The beauty and the beast of hydraulic mining is on full display at this California Historic State Park.

A classically inspired temple in Redwood City.

Suburban observatory was personal lab of the father of modern astrophysics.

An expansive and intricately restored mansion remains from over a century ago--and so do its ghosts.

Despite being a perfectly pleasant place to be, Loyalton can't seem to attract any visitors.

Since World War II people have been decorating this stretch of the Yuma desert with signatures arranged out of rocks.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

Experience the "opulence, grace, and grandeur of Eureka's most famous Victorian Inn."

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

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