A strange house built only at night, with rumored mystic inspiration.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

The only museum of sake in the United States is nestled in an unlikely California college town.

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

The largest drain hole in the world.

This graffiti-covered bridge is the quintessential vision of a place for disillusioned youth to escape the complexities of burgeoning adulthood.

Eclectic collection of dark and macabre antiques.

Historic psychiatric asylum and most-filmed location in the Great White North.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

100-year-old shipwreck you can walk up to at low tide.

A reproduction of earth's many biomes.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

This abandoned motel doesn't welcome guests anymore, but decay and a creepy atmosphere still call it home.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

This abandoned boat was left in place thanks to its rotting beauty.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

Furniture tries to escape an abandoned building in San Francisco.

This charmingly homemade amusement park has been growing for 40 years.

A one-of-a-kind collection of a unique medium.