This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

A popular swimming hole that hides one of America's most deadly diving spots.

Historic marionette theater features thousands of handmade puppets and free cups of ice cream.

This glamorous old building is said to have inspired the Tower of Terror.

A sculptor's dream castle turned fantastical ruin.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

A haunted hill that supposedly defied gravity.

A wondrous old library overlooking the nation's capital.

This grand mansion has starred in everything from Bones to Buffy.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

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

A common entry point to the Griffith Observatory trail holds its own wonders.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

The oldest surviving synagogue in New York City is now a soaring art space.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

"Looks so real, it's scary!"

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

A castle built by an eccentric medieval enthusiast in suburban Ohio.

Nondescript elevator doors open to reveal a stunning, surreal world.

The remains of the first punk club in L.A.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.