A once grand hotel is being retaken by the wilderness it once capitalized on.

Once the tallest building in the world and the site of “the highest dinner ever held in New York” this building now holds the most expensive penthouse in the city.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

The "Seinfeld" diner.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A celebration of capitalism in Midtown.

Ride the subways of yesteryear.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

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

An enormous, inside-out glass globe built in 1935.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

The home-turned-museum of Barış Manço, the mustachioed Turkish Elvis for children.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.