During the holidays, a vintage subway train whisks New Yorkers back in time.

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

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

New York City's smallest piece of private property.

A dilapidated dock tells the story of Titanic's missed arrival.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

The plague quarantine island home to the alleged "Vampire of Venice."

Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

An Italian hillside ghost town.

The final resting place of the poets Shelley and Keats.

The oldest operating pharmacy in the world features 800-year-old recipes.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Amateur taxidermy museum known for its large collection of white squirrels.

Meet the "Green Monster" of Monico, Wisconsin.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

Tirelessly maintained by a Wisconsin man named JFK.

The home of 1.5 million wood letters for printing is still a functioning workshop.

A trailblazing sovereign nation tucked in the American state of Wisconsin.

Giant six-pack could provide one person a six-pack a day for 3,351 years.