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

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

The oldest continuously operating farm in New York State.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.

What remains of the simple red brick chapel where the women's rights movement began.

This statue commemorates the meeting of the most influential minds of the women’s rights movement.

Mysterious stone tower featured in many alternative histories of the New World.

Unicorns, elephants, and bears, oh my!

A short nature trail winds through the greatest works of poet Robert Frost.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

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

Salute the leader of the proletariat.

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

Once the tallest building in the world and the site of “the highest dinner ever held in New York” this building now holds the most expensive penthouse in the city.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

Unrepaired walls from a 1920 anarchist bomb attack.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

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

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

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.