The quarry was abandoned over 100 years ago, after a massive ammunition explosion ended in tragedy.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

This tiny little island has, as the name says, just enough room for its single house.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

A castle built for love, and abandoned due to heartbreak.