This 17th-century passageway is home to numerous bookshops, a witch legend, and the oldest pizzeria in the world.

One of only two commuter aerial tramways in the United States.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A crumbling hospital from the 1850s on Roosevelt Island.

A collaborative art project that transformed a neighborhood in NYC's Queens.

This outdoor gallery of sculptures along the East River was once a landfill.

A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.

Graffiti-covered ruins of a luxurious resort sit among enchanting beaches.

Third time's a charm, or in this case, two testicles are.

This historic park site contains the last remnants of a once bustling canal system.

The colonial home of Paul Revere during the American Revolution.

These three lighthouses played a fundamental role in the maritime life of Eastham.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Founded by the famed children's book artist, this museum spreads an appreciation of the arts through picture books.

This candy-colored storybook village originated as a 19th-century Methodist campground.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

This monument is dedicated to Balto, the heroic Alaskan sled dog.

The only subway station in the city that still makes use of gap fillers.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

The only surviving sidewalk clock in Brooklyn.