The world’s first penitentiary, meant to be humane, drove men insane.

The first pet cemetery in the United States.

This historic railway museum may have lost its passengers but not its love for trains.

One of the earliest bowling lanes in the U.S. doubled as a sewing school during a time when women had little job opportunity.

This slender three-story building has also had several famous residents.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

The greatest real estate coup of all time.

Commemorating the spot where the famous scientist fed his pigeons.

Legendary private island in the Bronx...devoid of rats.

The loneliest island in New York.

A living antique aviation museum in the historic town of Red Hook, New York.

A monument stands to the famous suffragist who penned the declaration for women's equal rights, including the right to vote.

The former residence of Elizabeth “Mumbet” Freeman, an enslaved African-American woman who successfully sued for her freedom.

Try not to get slimed in Tribeca.

A park full of outsider art, created by college students studying outsider art.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

An outlandish shoe shaped house built by an eccentric millionaire.

The oldest farmer's market in America is so ancient it was approved by the King of England.

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.