Relics designed to contain and conceal Yugoslavian submarines.

Its frescoes depict the likeness of Marshal Tito, Karl Marx, and Friedrich Engels burning in hell.

Former military fort and site of untold horrors during WWII, this island may become the Adriatic's next luxury resort.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

A tiny church on a man-made island in the Adriatic.

The world's oldest continuously operating record shop has been in Cardiff since 1894.

This castle tower in Wales leans at a steeper angle than the Leaning Tower of Pisa.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

England's only square-dimension hill horse was built to celebrate Queen Victoria's coronation.

A 2,000-ton rock resting in a state of a delicate balance.

Built for herding sheep, these tiny winding lanes with medieval origins and distinctive series of narrow turns are charming walkways for humans today.

A petite castle folly in the English countryside.

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

Puzzles within puzzles hide a golden treasure in this hedge maze.

The centuries-old obelisk may have inspired J. R. R. Tolkien.

A whimsical cottage from the 1300s with a preserved Victorian-era post office inside.

The only pub in the world surrounded by an ancient stone circle.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

The pockmarks across the building's facade are remnants of the Blitz.

Giant naked man on a hillside.

This antique prison is a tourist attraction with a sordid past.

Charles Babbage's proto-computer, painstakingly brought to life.

Pop culture has helped to keep this iconic British building from being destroyed.

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