A domino effect created with Britain’s iconic telephone boxes.

This one has sailed five times as far as Sir Francis Drake's famous ship.

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.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

The largest greenhouse in the world is home to over one million types of plants.

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

Rebuilt remains of a temple to Roman god Mithras.

Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The modern birthplace of Irish freedom.

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

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

The hallucinogenic center of the ancient world.

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The largest caravanserai in Cyprus also includes amazing examples of Ottoman architecture.

An ancient necropolis of magnificent tombs.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.