A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

The most confusing clock in New York.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

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

Try not to get slimed in Tribeca.

The shared home of a utopian commune that practiced "free love" a century before the hippies.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

One of the largest festivals of flowers in North America takes place, appropriately, in the Flower City.

Rochester's signature culinary delicacy.

A beautiful multicolored mound formed by the mineral deposits of the Orenda Spring.

A 13,000-year-old mastodon skeleton was found during the construction of a 19th-century New York mill.

This historic church with a connection to "Uncle Sam" is now a fraternity house.

This relic of 19th-century infrastructure is one of the few remaining coal gas storage tanks in the U.S.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

This cheese shop also houses a museum devoted to Dutch dairy.

Dothan, Alabama has been invaded by scores of anthropomorphic peanuts.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

One of the largest Native American shell middens stands 30 feet tall.

Where serial killer Aileen Wuornos drank her last beer.

Owned by no one but beloved by all, Brownie was a good dog.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.