The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

Anatomical cabinet holds unexpected treasures.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

Gigantic mosaic sculptures of the figures on Tarot cards fill this colorful Tuscan garden.

One of the largest caves in the world open to the public.

Venice's island of the dead.

Walk through a fairytale in Tuscany.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

The location of the last witch trials of Italy, known as "The Salem of Europe."

This centuries-old Italian chapel hangs midway down a sheer cliffside.

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

Bioluminescent firefly squid light up this Japanese fishing port.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

The magical, mossy forest that inspired 'Princess Mononoke.'

A fairy tale castle in modern Rome.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

The final resting place of the poets Shelley and Keats.

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