Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

The now-quiet remains of coastal artillery defenses that were used in both World Wars.

This stream-carved gorge has inspired poets, hidden smugglers, and trained soldiers, all without losing its beauty.

The UK's oldest theme park slowly slips away.

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

A miniature village mimics the surrounding buildings so well it includes itself.

Gothic tower where Lord Alfred Tennyson wrote the poem "The Sleeping Beauty."

An 800-year-old island castle in Guernsey's main harbor.

One of the world's smallest prisons boasts just two small cells.

The first island in the world designated a light-pollution-free astronomical observation point.

A open air theatre built on a cliff by an eccentric British woman.

These small, triangular, colorful houses are a staple of Madeira Island.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Unable to build support structures on glaciers, the engineers for this tramway were forced to design a unique system.

Baroque celebration of the end of the Great Plague of Vienna.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

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

A Neolithic tomb hidden among a spectacular boulder-strewn stretch of coast.

Now overlooking the Home of the British Army, this gargantuan statue was removed from its original location in London.

This quaint mortuary chapel hides a stunning Celtic Revival and Art Nouveau interior.

This sculpture combines the literary Alice with her real-life inspiration.

The remains of the oldest synagogue in Britain lay forgotten for seven centuries, hidden under a humble shop.

Climb to the top of the world's largest seated bronze Buddha.