A quiet and contemplative oasis in the middle of New York's bustle and riot.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

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

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

The oldest surviving synagogue in New York City is now a soaring art space.

Nondescript elevator doors open to reveal a stunning, surreal world.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

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.

One of the last Jazz Age "Wonder Theaters" in New York City.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

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

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

More gold than anywhere else, ever.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.