The remains of what was once the world's steepest passenger funicular.

Home to the abandoned Tioronda Hat Works Factory, this park is a combination of woodlands and marshlands.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

Series of storm drains connected to a dark urban legend.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

This abandoned factory on the Hudson River once churned out a million bricks a week.

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

The remains of a century-old mansion that met a fiery demise years after it was deserted.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

The oldest continuously inhabited street in America.