This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

An underground city of salt.

Famously misunderstood wonder of the ancient world

Scattered throughout London are ancient remnants of the city's former bounding wall.

Part museum, part piece of Arthurian-inspired history, this stately hall attracts King Arthur fans from miles away.

Stroll through Welsh history in a village of reconstructed structures.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

Brussels' favorite peeing boy has a sister.

A meteorite-bounded town in Bavaria.

Come for the flowers, stay for the bats!

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

Hundreds of tiny dead butterfly eyes gaze down at diners in this Australian eatery.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

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

A whimsical bridge adorned with decorative dragons.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

A fantastic castle rumored to be the birthplace of King Arthur.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

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

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

The final resting place of soldiers' loyal canine companions.