This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

The medieval "Bearded Man" relief still serves as a clever flood warning marker.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

The statue of a cursed knight is said to come to life every 100 years.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

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

A surreal statue honoring Prague's favorite literary son.

A 13th-century fortified manor house that was once sieged during the English Civil War.

The home of an eccentric Edwardian gentleman is packed to the rafters with handcrafted items collected over a lifetime.

This plaque commemorates an amazing 19th-century sea rescue.

The sole surviving medieval street cross in Scarborough.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

This coin collecting cod is over 130 years old, and the United Kingdom's smallest listed structure.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.

A set of medieval stained-glass windows tell the gruesome story of a Viking siege.

Inspired by Thomas Stothard's painting of the "Journey to Canterbury," albeit with Canterbury natives.

A showcase of canine neckwear spanning five centuries of doggie fashion and function.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

The oldest of the three remaining bridges in England with buildings on top of them.

Modern commuters still pass through this 2,000-year-old Roman archway.

Legend says this demonic carving inside a medieval cathedral was one of Satan's minions.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.