Rippling sand dunes frozen in the Arizona rock.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

The remains of the worst maritime disaster in the history of the "Graveyard of the Pacific."

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

A number of gruesome unsolved murders have turned this simple home into a morbid tourist trap.

The secret city built by the Manhattan Project.

Tenacious mummies survived dental problems, eternal entombment, and more than their fair share of devastating fires.

A monument to the love people have for their pets.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

Visible below the waves are memorials to the city's Gold Rush dead.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A 140-year-old castle with underground caves hidden in San Francisco.

Home to the deepest rift anywhere on Earth.

This is probably not the Target you're looking for.

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

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.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

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