Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

A solemn memorial in a majestic setting that honors a 1692 tragedy.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

A six-ton wedding present for the King of the Scots.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

The most loyal of little dogs, or a Victorian era publicity stunt?

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

The defensive tower was built centuries ago to warn locals of Berber pirate attacks.

Red, white, and blue painted steps along with a Union Jack celebrate the outcome of Gibraltar's 1967 referendum.

Single runway interrupted by a busy road that cuts across its middle.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

This lurid German fountain plots the sad course of marriage from dating to death.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

An abandoned train station in Munich constructed for the 1972 Olympic games.