Step back in time at this 19th-century kiosk.

The best place in the world to buy tinned fish.

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

Built in the 1920s, this co-op in the Bronx feels more like an Italian villa than a typical New York apartment building.

Astonishing collection of helmets, scientific instruments, and medical models.

This abandoned ironworks was once the most important military supplier in America.

Reforestation in action is the main attraction in this abandoned quarry.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Self-sufficient greenhouse floating on the Hudson River.

A waterway covered over after the Industrial Revolution has been unearthed and cleaned up, for the enjoyment of fish and humans alike.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

The lesser-known Alice sculpture of Central Park dedicated to the “godmother of American children.”

A quick trip around the globe through an amazing miniature exhibit.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

A garment factory hides a small Dominican eatery in the hallway to its freight elevator.

Lie in a hammock where George Washington stood.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

The place where Dvořák composed some of his most famous works.

Known as the "Grand Lady of Jersey City,” the city's first racially-integrated hotel was owned by a preacher who was, depending on who you ask, a cult leader, civil rights pioneer, or the manifestation of God.

Prank calls to this place, originally the "Tube Bar," inspired the creation of a Simpsons character.

This huge work of functional public art replaced a landfill in New Jersey's Meadowlands.

The drawbridge used in the filming of the movie 'Annie' has been in the open position as it was in the movie for decades.