This lavish room in a New York City mansion is a rare relic from the end of the Gilded Age.

The site of a tragic massacre that spawned a multimedia franchise.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

Those belting out show tunes in this West Village piano bar might not realize it marks the site where Thomas Paine died in 1809.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

New York City's only radical feminist independent bookstore.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

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

A popular European tradition makes its way to the states on one of America's most famous bridges.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

During the holidays, a vintage subway train whisks New Yorkers back in time.

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

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

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

A Red Hook dive bar that is holding onto its roots.

This 19th century wooden span is one of only four retractile bridges in the United States.

The remnants of what was once the largest film studio on the East Coast are hiding in plain sight.

A series of fish plaques that are embedded in the malls of Ocean Parkway.

The ballpark in "Pigtown" where the Brooklyn Dodgers made their name was replaced with a huge apartment complex.

Now owned by the National Park Service, this location was once home to illegal boxing matches.

New York's oldest concrete structure is being preserved thanks to the gentrification of Whole Foods.

While it now takes more than a dime to open an account this historic Brooklyn bank still displays the opulence of the gilded age in which it was built.

This impressive mansion in Vinegar Hill has some mysterious details in its architecture.