The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

"Gnome Chomsky" was once the largest gnome in the world, but is now simply tall for his kind.

A once grand hotel is being retaken by the wilderness it once capitalized on.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

The origins of midtown Manhattan's anachronistic wooden farmhouse remain a mystery.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

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

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

A sculptural commentary on capitalism pokes up from the East River.

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

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

The highest point on the island known for buildings that touch the sky.

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

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.

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

Down a stairway in the East Village, you could once read a plaque describing an alternate history of a fictional version of Manhattan.

Hiroshima survivor on Riverside Drive.

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

This abandoned caretaker's apartment is one of 13 left in the New York Public Library system.

Join in a Seance at the Swedenborgian Church.

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

The notorious headquarters of a corrupt political machine.

Little Red Lighthouse under the George Washington Bridge.