The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

New York's oldest concrete structure is being preserved thanks to the gentrification of Whole Foods.

The greatest real estate coup of all time.

Walk over a 150 year old manhole.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

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

The saddest little diner in New York.

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

The most confusing clock in New York.

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

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

Slyly buy a shake in the Parker Meridien lobby.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Wine bottle sculpture with a ship's stateroom inside.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

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

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

A semi-scholarly approach to sex.

Elevated freight railway turned wildly successful urban park.

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

A crumbling hospital from the 1850s on Roosevelt Island.

Strange red rock formations that have been attributed to a higher power for hundreds of years.