Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

There must be a pun in this haystack somewhere...

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

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

Home of Philip Johnson, one of the 20th century's most influential architects.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

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

Elevated freight railway turned wildly successful urban park.

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

Enormous one time fiber mill now houses local artists and small businesses.

A crumbling hospital from the 1850s on Roosevelt Island.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

Historic Greenpoint theater turned roller disco, then chain pharmacy, and now Sweetgreen.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

Nature and beauty amidst pollution and industrial wreckage.

A terrific purveyor of natural history objects and curios.

A hidden "place of interment for gentlemen."

A modern addition to the Greenpoint skyline.

Avoid gangster interaction while window-shopping.

Prove you deserve to be fed by Kenny Shopsin.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?