Beautiful steampunk ghosts of early Massachusetts.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

Friction between grains of sand cause a curious "singing" sound.

An eccentric inventor's castle home with its own indoor weather system.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

This enormous abandoned factory is now a makeshift graffiti gallery.

Underground tunnels remain beneath this abandoned mental asylum.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

A former copper mine which became a truly unsuccessful prison.