In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

The remains of an old sawmill, gristmill and the surrounding industry dating back to the 18th century.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

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

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.