An abandoned railroad tunnel is now filled with bioluminescent bugs.

Every Easter, a small Sicilian town builds a stunning cathedral out of bread.

Art and armour fill every inch of this rich kid's Italian villa.

This museum is rotten with a century of wax medical deformities.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

Anatomical cabinet holds unexpected treasures.

Explore the quarry where the marble was sourced for Michaelangelo's David.

This Italian dam is covered in salt-hungry goats who manage to scale its almost vertical face.

Bell tower juts out from a village buried under a lake.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

This zoological museum began as the first great curiosity cabinet.

An extraordinary collection of 18th century anatomical waxworks.

An amazing collection of wax anatomical models and terratological models.

David Sedaris called it "The greatest shop in the world."

Typewriter museum housing more than 1,500 machines preserves the history of the grandfather of computers.

A climbing route in the mountains of Italy’s Dolomites, built for soldiers during World War I.

Europe’s oldest natural human mummy.

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

Venice's "Island of the Mad."

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

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

Go inside to really appreciate this 500-year-old technological masterpiece.