Long-forgotten artifacts give incredible insight into New York's most glamorous hotel.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

A prohibition era watering hole for the police.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

The highest point on the island known for buildings that touch the sky.

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

This abandoned caretaker's apartment is one of 13 left in the New York Public Library system.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

A posh members-only club with a literally dramatic history.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

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

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

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Visit the site of a subway powered by nothing more than air--and lots of it.

The site of the deadly Triangle Shirtwaist Factory Fire.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

NYC's legendary underground network for bovine transportation.

An annual extravaganza of Broadway theater memorabilia.

A staggering collection of photographs depicting medical, social, and historical change.

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

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

Hear the tales of New York's most notorious criminals.