100 years later, they're still down there.

The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.

Where the rich wintered in Pasadena.

Pasadena glamour turned government issue.

Apartment building was once posh playground to the Hollywood elite.

A hotel and restaurant serving as the mecca of kitsch.

A ruined hotel with an unlucky history and an eerie present.

Abandoned hotel with adjacent lake and golf course.

Cambria's most unique B&B features creative surroundings and fantastic food.

One of the first skyscrapers in Santa Monica, and a famous getaway for the Hollywood elite of then and now.

An eclectic trailer park retreat in the middle of the California desert.

A historic hotel in an old California railroad town with a rowdy reputation.

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

Only hotel where you can legally launder money.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

Two men, two visionaries of Venice Beach, one little hotel that smells like cookies.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

19th century cemetery hidden in Brooklyn's Prospect Park.

Final resting place for the Triangle Shirtwaist fire’s unidentified victims.

A burial ground of rusting metal grave markers.

Brooklyn's Barkaloo Cemetery is the resting place of a scant two bodies.

The final resting place of the great escape artist, where some still gather to wait for his escape from death.