The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

The people of Padua pledged to construct this church if the city was spared from destruction during World War I.

One of the largest squares in Europe contains an entire artificial island.

The oldest botanical garden in the world that technically isn't the oldest.

The oldest volcanology research center in the world.

For decades, vendors have sold clothes once worn by American soldiers who stormed Italy in the 1940s.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

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

These bronze horses on the gates of the Royal Palace of Naples were a gift from a Russian tsar.

This monumental fountain has moved around the city multiple times.

Smack-dab in Campania’s volcanic fields, this scenic lake was once thought to be the gate of hell.

A tree that defies gravity grows in an ancient ruin.

The Bourbon royal family had this unique octagonal hunting "cottage" built on a tiny islet in Lake Fusaro.

Roman-era ships unearthed...

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

A sculpture serving as an homage to Pope John Paul II.

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

This statue is the only female representation of Rome's "talking statues."

An ancient Roman temple first dedicated to an emperor's wife is now a church.

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

2300-year-old Roman road connecting the empire.

Jesus' footprints and the first catacombs in the world.