A book bound in the skin of an infamous criminal, along with countless other specimens.

This 15th-century structure had a long, tortuous journey to its current location.

This monument is dedicated to a young boy who survived a disaster that forced Edinburgh to reevaluate its building codes.

This 16th-century close preserves an unusual piece of Edinburgh's transportation history.

An ornate "graveyard" for some of the country's forlorn building relics.

This 16th-century house tells the city's history through old artifacts and quirky tales.

Today, Kent's medieval monarchs hold court on a busy pedestrian thoroughfare—or at least their statues do.

This king penguin is a knighted brigadier of the Norwegian Army.

Hundreds of years ago, this lion-shaped door knocker could help a person accused of a crime find temporary safe haven in Durham Cathedral.

A former medieval fortress, now home to Edinburgh Napier University, contains a rather risqué work of art.

This tablet indicates where the tragic monarch returned to begin her tumultuous downfall.

An alchemical monument that represents "Earth, Air, Fire, and Water."

The largest statue of this convex, homogeneous object with just one stable and one unstable equilibrium point.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

One of Belgrade's most beloved animals.

This ancient holy well is older than much of the city that surrounds it.

These formal gardens were designed to be admired from the vantage point of the castle.

The main residence of the Erskine family and the hereditary keeper of the nearby royal Stirling Castle.

This pyramid is dedicated to all those who suffered martyrdom for civil and religious liberty in Scotland.

This collection of Neolithic monuments make up one of The U.K.'s richest archeological landscapes.

A sculpture that commemorates an iconic photo of urban Scotland's past.

It's said this was once the home of King James V's pet lion.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

This art installation pays homage to the famed stones of European lore.