Claude Monet immortalized this medieval bridge in two of his paintings.

This Italian ski resort rose to fame when Benito Mussolini was held prisoner there and then rescued by the SS.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

The world's oldest known salt mine.

The bomb-ravaged remains of of a colossal Neptune.

Genoa's collection of over 4 million zoological, botanical, and geological specimens from around the world.

A sunken idol welcomes parishioners to Davy Jones' Locker.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

Once home to one of the oldest banks in the world, this building is also where Marco Polo's famous travelogue was written.

This peculiar Italian elevator runs both horizontally and vertically.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The most visited, and possibly most controversial, museum in Germany.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Paris' linguistic guide to the international language of, yes, love.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This bridge was constructed from the rubble of the infamous Bastille.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.