Some of the world’s most popular songs came out of this building.

World Trade Center memorial likened to a woman's sexual organ.

This unique house, the only one of its kind in Brooklyn, was built as part of a real estate developer's showcase.

These century-old townhouses contain some of the first car garages built in the United States.

A Collegiate Gothic quadrangle that surrounds an 18th century secondary school whose financing came from the likes of Alexander Hamilton and Aaron Burr, among others.

During the American Revolution, this mansion hosted failed peace talks between the British and Americans.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

The poet's been ambling through these New York woods since 1940.

100 massive sculptures in the Hudson River Valley.

The Brigadier General was so afraid of being buried alive that he had a buzzer installed in his mausoleum, just in case he woke up.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

A small piece of Scotland sits in a park in Lower Manhattan.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

This sprawling woodland estate was the brainchild of iconic American industrial designer Russel Wright.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

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

In Cold Spring, New York, a shrine containing Godzilla and an assortment of plastic dinosaurs stands dedicated to a teenager who died in a car accident in 1996.

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

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

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

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

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

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