An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

Medieval torture techniques with a modern conscience.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

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

This giant middle finger statue sends an unambiguous message to Italy's bankers.

This sinister Baroque entryway could lead you to a terrible fate.

This Art Nouveau mansion was used as the "House of the Screaming Child" in Dario Argento’s giallo classic.

This building was designed to celebrate Italy's victory in World War I.

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

Cave on extinct volcano, once home to famous mathematician Pythagoras.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

This medieval monastery represents an architectural blend of eastern and western European culture.

This fortress-like monastery is covered with intricate frescoes.

From Carthage's Hannibal to riders of the Tour de France, many have crossed this scenic route through the Alps.

On the shores of Lake Laffrey, a monument commemorating one of Napoleon Bonaparte's most compelling victories.

This impressive chasm is one of the longest natural underground cavities in the world.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

Lyon's "Wall of the Silk Weavers" is one of the largest murals in Europe.

Hundreds of secret cabinets built into the walls of legendary poisoner's private work room.

The only visible remains of this ancient Greek underground temple is its roof protruding from the earth.