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

An art installation commemorates journalist Nellie Bly's undercover reporting inside a New York asylum.

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

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

Site of the first pathological and bacteriological research facility in the United States.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A crumbling hospital from the 1850s on Roosevelt Island.

One of only two commuter aerial tramways in the United States.

Try not to get slimed in Tribeca.

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

The competition: breathe deeply as long as you can.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

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

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

How a century-old glass factory in Queens became a concert venue and arts center.

An abandoned dollhouse factory.

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

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Established in 1937, the oldest candy shop in New York City boasts a rainbow-colored inventory that would make Willy Wonka envious.