A house of bones — but nobody is quite sure to whom they belong.

Colin Stokes "got a bit carried away" and built a castle that looks like something out of Tolkien.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

The oldest inn in England served brew to the crusaders.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

A modern English garden of eccentric beasts, follies, and oddities.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

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

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

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

A kaleidoscopic warehouse-maze of handmade neon signs.

Village situated on a narrow volcanic escarpment.

An unusual assortment of art, furniture, and other curiosities.

An underappreciated sculpture garden just a few blocks from the capitol building.

Remote ruins of a 2,400-year-old Iberian settlement.

Famed architect Antoni Gaudi built this generous thank you gift to a friendly host who housed him during a job.

A darkly erotic open-air statuary in Catalonia.

A Romanesque tower appears when water levels drop.

Of course Salvador Dalí lived in a castle...