This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.

This Art Deco airport was once deemed “the air hub of the Americas.”

"If she'd leave us alone, we would have a happy home, sent from down below."

The first patented shaved-ice machine heralded a snowy wonderland of iced treats at a favorite New Orleans summer shack.

Imagine playing a version of Legends of the Hidden Temple, but with a distinctly Southern Gothic flare.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The curiosities and wonders of pharmacy in a delightful historic building.

"Mock all and sundry things, but leave the saints alone."

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

Rummage through this sunken ship, but leave your scuba gear at home.

Here, exhibits come with a side of edible history.

A charming "tea atelier" hidden away in Greenpoint, Brooklyn.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

A very classy 1920s-era bar right in Grand Central Station.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

This abandoned subway station can still be seen on regular commuter trips.

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.

Unique antiquarian shop specializing in globes, maps, and prints.

An unassuming secret door once led to a legendary watering hole.

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