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

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Surreal riveted sea forts once protected the Kent shores from German attack.

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

This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

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

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

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

German and American troops joined forces to defend this fortress during the strangest battle of World War II.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

A patriotic medieval knight in driven-nail armor raised money for widows and orphans of WWI.

Dine amidst exotic plants at this former royal greenhouse.

Archduke Ferdinand II's collection of rare objects is considered one of the oldest museums in the world.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

This century-old cinema house has a marquee that has been hand painted by a single man for over 25 years.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

A crucified and bearded female saint.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

The mystery of the Putim Ossuary involves a tricorn hat.

A former squatter's paradise outside Prague.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.