Beautiful Victorian buildings from L.A.'s forgotten architectural past.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

A multimedia experience that chronicles the atrocities of racism.

Only hotel where you can legally launder money.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Illegal drag racing two stories beneath Chicago’s streets.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A small island with no monkeys but plenty of military ruins.

Huge masonic hall in Philadelphia with lavishly themed rooms.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

This midcentury LA bar was the birthplace of tiki culture.

Museum dedicated to the preservation of surf culture.

One of the only known surviving coconut palm trees in the entire state.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

Megachurch turned Catholic church comprised of 10,000 glass panes.

Oldest building in California still in use.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

This former boomtown "island" is now submerged below Folsom Lake.

A tiny survivor of the Donner Party disaster.

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

Where there's quartz, there must be gold. Thus is the story of the mines of Julian, and the titillating times of the Gold Rush.

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

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.