Long-forgotten artifacts give incredible insight into New York's most glamorous hotel.

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

Hear the tales of New York's most notorious criminals.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

An underwater statue of Christ blesses the depths off Key Largo.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

An underwater city for the dead.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

Natural sonic phenomenon comes with a grisly legend of murder and blood.

A unique geological area spiked with wind-carved rocks that resemble teepees.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

Where Venice's gondolas go for a tune-up.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

Holding the most bodies of any cemetery in the United States.

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

The legend associated with these ruins understates the splendor of the mansion that once stood here.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Shelves covered in dozens of coffee bean varieties fill this North End institution.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.