One of the last full-orchestra recording studios in New York City and an acoustical marvel.

Walk into the 19th century without leaving Brooklyn.

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

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

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

This collection of grinning ephemera has grown from basement to Brooklyn.

Once America's longest-manned military fort, now an abandoned hulk.

“Invented in Key West, Perfected in Brooklyn."

Wine bottle sculpture with a ship's stateroom inside.

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

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

The oldest surviving synagogue in New York City is now a soaring art space.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

The "Skinny House" is made from scrap, salvage, and a neighbor’s kindness.

This old estate is a remnant of when the Bronx was a popular summer destination for wealthy New Yorkers.

Self-sufficient greenhouse floating on the Hudson River.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.