This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

This 14th century tower house was once the home of Irish poet W.B. Yeats.

Local legend says the remains of Father Christmas lie within the medieval grounds.

The UK's largest private house was the subject of a long-lasting political dispute.

Several land speed world records were shattered at this Welsh beach.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

An eclectic sculpture park rises atop a giant pile of ashes in Sweden.

These enlarged egg sculptures represent the native birds of eastern Iceland.

This quirky piece of naval artillery has been deafening Canadians for over a century.

A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

Hans Christian Andersen for the postmodern world.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

This 15th-century fortification was built to defend bunnies.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

Some of England's last cave dwellers lived and worked within this huge cave.

A gardener saved a beloved clock face from destruction by building it into a wall outside his house.

A relic from one of London's worst 19th-century slums.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.