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

Try not to get slimed in Tribeca.

Sip a cappuccino in the historic cafe that introduced them to the United States.

A Jewish deli run by Yemeni Muslims in an Afro-Caribbean neighborhood is quintessential Brooklyn.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

Working mining and drilling equipment demonstrate 150 years of energy history.

Museum dedicated to the preservation of surf culture.

Try the frozen treat that inspired Arrested Development's famous banana stand.

Two community gardens under the elevated subway lines on a very busy commercial strip in Bushwick.

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

This 19th century brick building in Brooklyn stands out like the anachronistic landmark that it is.

Michael Jackson got Bad and Crocodile Dundee walked on heads in this iconic Brooklyn subway station.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

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

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

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

This beautiful Brooklyn monument over a crypt memorializes a grim and largely unknown story from the American Revolution.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

Neoclassical bank designed by NY architects Helmle & Huberty.

Once a ferry dock, radio transmitter, and now a new Greenpoint park.

The return of something once considered a basic part of life.

One of the first major shipyards in Brooklyn.

The only remaining Jewish congregation in Greenpoint.

Church featuring "high Victorian gothic" architecture.