The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

A 30-acre garden inspired by the principles of modern physics.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

These fantastically named natural pools look like something out of a Scottish myth.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

The ruins of a medieval monastery named after a type of tree.

A stunning Victorian abbey and walled garden on a lakefront.

This natural sea arch highlights Ireland's rugged coastal beauty.

An ancient holy well said to be used by the patron saint of sailors and travelers, lost in the boggy west of Valentia Island.

The home of Ireland's last leprechauns is officially protected by the European Union.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

Achill's most recently abandoned village dates back to to the Age of Enlightenment.

Experience what life was like in Ireland during the Viking and medieval ages.

Petrified footprints of one of the very first vertebrates to walk on land.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

An architectural oddity hides in plain sight on this iconic London bridge.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

An unassuming London park is actually a pilgrimage site for modern clowns.

The fences outside some of South London's estates are made from recycled World War II stretchers.

William Smith's iconic "map that changed the world" is hidden behind a curtain in the Geological Society building.

The largest clown school in Britain offering accredited degrees.

These morbid carvings remind churchgoers of the inevitability of death.