The final resting place of many of Germany's most famous communists.

One of downtown Berlin's last reminders of its Communist past.

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

An eerie, derelict amusement park in Berlin.

Step into a pastel time capsule where candy is truly dandy.

The abandoned coal loading dock is a canvas for unsanctioned art.

World's first "penitentiary," meant to be humane, drove men insane.

An enormous overgrown greenhouse teeming with graffiti and wildlife.

World War II bunker still standing on the New Jersey beach.

Step inside Lucy, the world's largest "elephant."

A unique sculpture park that specializes in the huge and bizarre.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

This rickety old shed hides a trove of secondhand literary treasures.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

This former asylum for Black Americans is haunted by its history of violence and racism.

This abandoned Victorian-style house was built in 1884.

Remnants of a storybook amusement park hidden behind a strip mall.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

The hidden ruins of a mill that is linked to an attempt to assassinate the vice president of the United States.

Once a thriving business district, this former shopping area is now an urban ghost town in the heart of the city.

Meet some of the most prominent figures in Black history through life-sized wax models.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.