There aren't too many operational funiculars around, but Pittsburgh has two!

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

The graffitied ruins stand hidden within the Pennsylvania woods.

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

This simple stone memorial remembers a secret, Geneva Convention-defying interrogation base from WWII.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

The FBI's urban training course may have the highest fake crime rate in the world.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

Located at the former Lorton Prison the Lucy Burns Museum tells the story of the 91 year history of the prison including the dark chapter of its involvement in the women's suffrage movement.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

The only recreation of William Shakespeare's indoor playhouse.

An eccentric company offers eccentric millionaires the opportunity to have spaceflight-related experiences.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

Outsider art meets paleontology at this roadside reptile repository.