America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

The former hotel where Tesla invented the radio.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

Become a prohibition rebel.

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

New York City's smallest piece of private property.

A hands-on traveling collection of the innovative devices of yesteryear.

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