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

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

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

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

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

The most confusing clock in New York.

A Manhattan office building is home to the world's largest chess board.

The notorious headquarters of a corrupt political machine.

A Manhattan Episcopal church with an eerie underground crypt.

Phil Mortillaro uses keys to bring art back to the Village.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.

Join in a Seance at the Swedenborgian Church.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

The site of the deadly Triangle Shirtwaist Factory Fire.

Visit the site of a subway powered by nothing more than air--and lots of it.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

The oldest living tree in Manhattan comes shrouded in sinister legend.