Series of storm drains connected to a dark urban legend.

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

The greatest real estate coup of all time.

Risk arrest while partying to fund art.

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

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

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

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

A celebration of capitalism in Midtown.

Water of undetermined depth has attracted rare fish and cult leaders alike.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

Visitors dip into a variety of pools of what was once ice.

A mysterious castle built as a monument to lost love.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

Mile-long cave system near Great Smoky Mountains.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Take a drunken tour inside the world's largest known geode.

Eclectic architecture in the woods of New York.

Bizarre Cavern.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

Why have you never heard of the second most popular tourist site in New York?