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

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.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

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

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

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

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

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

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

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

19th century cemetery hidden in Brooklyn's Prospect Park.

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

Walk into the 19th century without leaving Brooklyn.

Lie in a hammock where George Washington stood.

An illegally built ramshackle mansion tucked in the middle of Brooklyn is now being turned into condominiums.

Steam out your ears for New Year's Eve.

Four cars from the old system were once on display, but were removed in 2014.

“Invented in Key West, Perfected in Brooklyn."

Lehigh Valley barge No. 79 still gets tugged along - but now it houses a museum and unusual performances.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

Take in a rare, face-to-face glimpse of Lady Liberty at this tucked away Red Hook park.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

A cruise terminal that changes the atmosphere of Red Hook's industrial waterfront.