Ong's Hat, NJ
One of New Jersey's ghost towns (we have a few) although it may never have had more than a few inhabitants. It's located in the Pine Barrens -- an area of the state that was much more densely populated during colonial times than it is now. The area was a source of bog iron and was also home to some farms, but better sources of iron were soon discovered and the Pine Barrens are not very good for farming.
Highlight (from the Wikipedia article): "As a long-abandoned small settlement, Ong's Hat remained obscure until its name and location was co-opted in a book called Ong's Hat: The Beginning by Joseph Matheny, which was based on stories that had circulated on computer bulletin boards which held that a cult of outcast scientists opened an interdimensional gateway in Ong's Hat. Matheny was not clear as to whether his book was intended as fact or fiction."