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

Climb to the top of the world's largest seated bronze Buddha.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

This replica of the Greek structure is in the heart of Nashville.

A crumbling hospital from the 1850s on Roosevelt Island.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.