Built as a home for the Union Porcelain magnate in 1867, now the Greenpoint Reformed Church and home to a ceramic mystery.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

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

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

The only surviving sidewalk clock in Brooklyn.

Neoclassical bank designed by NY architects Helmle & Huberty.

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

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

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.

New York City's only preserved family home from the 19th century.

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

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

Lie in a hammock where George Washington stood.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

An eccentric inventor's castle home with its own indoor weather system.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

The famed amusement district marks the beginning of summer with a wild procession of nautical creatures.

Walk through the sets of old western films at this small museum in Utah.

Not your typical pet cemetery.

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

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Banksy's image of a naked man dangling from the window of a sex health clinic.