If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

The oldest Methodist church in the United States has been spreading the good news for over two centuries.

Currently housing a corporate bank branch this building at the southern tip of Manhattan was once the gateway to luxury vacationing.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

The home of the first American-born saint is one of the only curved buildings in New York.

Red frames showcase remnants of one of New York's original subway stations.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

This New York holdover was built to provide housing for shopgirls and still does not allow men above the lobby.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

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

Discover the taste of mold.

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

There must be a pun in this haystack somewhere...

The former hotel where Tesla invented the radio.

Unrepaired walls from a 1920 anarchist bomb attack.

Avoid gangster interaction while window-shopping.

Visit the monolithic tomb of America's most famous general.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

An artist's cute bronze subway sculptures belie his violent artistic past.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.