Reverend Jen's unique museum/living room showcases her troll collection.

Try not to get slimed in Tribeca.

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

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

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

This humble historic facade hides a history of boozing and the gentlemanly sport of rat-fighting.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

More gold than anywhere else, ever.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Unrepaired walls from a 1920 anarchist bomb attack.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Where infamous mobster and leader of Murder Inc. Albert Anastasia made his home.

This Great Depression-era creation was once known as the strangest house in the world.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

A modern zoetrope on the New York City subway.

The Underground Railroad passed right through this historic Brooklyn Heights church.

Set sail on a small scale.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

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

A miniature rainforest is growing inside of a Midtown Manhattan office building.