New York's oldest and possibly grandest keeper of books.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

The first and only carousel with a lineup entirely of insects.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

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.

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

A celebration of capitalism in Midtown.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

Mysterious 500-year-old tapestries depict a unicorn hunt.

A very classy 1920s-era bar right in Grand Central Station.

The "Seinfeld" diner.

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

Sniff the Titan Arum's rotting flesh.

Ride the subways of yesteryear.

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

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

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

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

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

A 2017 crowdfunding campaign saved this historic castle from being destroyed.

In this truly magical place, rent hasn't been raised since the year 1520.