Venice's island of the dead.

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

This half-finished "city of toys" was almost Italy's own Las Vegas.

Medieval torture techniques with a modern conscience.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

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

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

Romans built the world's tallest artificial waterfall in 271 BC.

Dramatic sea stacks adorn the coast of this small village on the Adriatic coast.

This delightful little museum is dedicated to only one thing: pasta.

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

The Pope’s secret escape route.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

Crushed coral and crystals give the sand its signature coloration.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

A sunken idol welcomes parishioners to Davy Jones' Locker.

This Italian foot path winds through the mountains via 52 individual tunnels.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

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

A Nesting Doll of Churches.

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.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.