A decommissioned military complex that's now a modern industrial park.

Unrepaired walls from a 1920 anarchist bomb attack.

On the Hudson resides one of the largest clocks in the world.

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

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.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

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

An easy to overlook storefront hides some of the most authentic and regionally diverse Chinese food in New York.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

Neoclassical bank designed by NY architects Helmle & Huberty.

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

The site of the deadly Triangle Shirtwaist Factory Fire.

This abandoned subway station can still be seen on regular commuter trips.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

A semi-scholarly approach to sex.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

What happens here stays here – unless it affects the whole world.

A crumbling hospital from the 1850s on Roosevelt Island.

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.

A bit of retro transportation flair preserved in the world's largest department store.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

One of only two commuter aerial tramways in the United States.