In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

An abandoned subway tunnel that could have reinvigorated Staten Island still lies somewhere beneath this Brooklyn park.

The New England cabin where an infamous British occultist conducted experiments in "magick".

The macabre graffiti spectacle in a quarry in a Massachusetts forest reservation.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Abandoned power station once home to a squatter community, now being developed into an arts center.

I fought the law and the precinct caved in.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

A Bed-Stuy gymnasium that hosts expansive raves, performances, dance parties, and more.

The saddest little diner in New York.

Now the site of a high school, this was almost the location of the largest cathedral in the US.

Check out the underground party scene at the "Burning Man of Brooklyn."

A posh members-only club with a literally dramatic history.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

Gang fights don't just happen on the streets, they happen under them too.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

A hidden "place of interment for gentlemen."

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.