A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

Series of storm drains connected to a dark urban legend.

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

Skewer up Kangaroo.

The world's largest drain sits below the city of Kasukabe, Japan.

Ride the subways of yesteryear.

On the Hudson resides one of the largest clocks in the world.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A decommissioned military complex that's now a modern industrial park.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Three-story slide through the New Museum.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

Elevated freight railway turned wildly successful urban park.

Rummage through this sunken ship, but leave your scuba gear at home.

Nature and beauty amidst pollution and industrial wreckage.

Three stories above you, your salad is being grown.

A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

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

A crumbling hospital from the 1850s on Roosevelt Island.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Slyly buy a shake in the Parker Meridien lobby.

A celebration of capitalism in Midtown.