The ritual has been performed uninterrupted for nearly 700 years.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

Venice's "Island of the Mad."

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

Although called a funicular by both its owner and the locals this historic railroad is actually a rack and pinion system.

This peculiar Italian elevator runs both horizontally and vertically.

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

Massive galleon from a box-office bomb docked in Genoa.

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

The memory of the ancient unit of measurement of local builders.

Where mountaineers were checked for lice before entering the city.

The city of Parma's cathedral is home to one of the greatest illusionistic frescoes of the Renaissance.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

A museum specifically dedicated to the Trabant, one of the iconic automobiles of the GDR.

Once a path for Jewish funeral processions, this unassuming alleyway is rich in local lore.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Cold war icon and onetime "hole" in the iron curtain.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

Started as a kitchen garden, now the second largest botanical garden in the world.