This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Old Danish castle immortalized in Shakespeare's Hamlet.

Nordic giants resurrected from the sea and restored to their former greatness.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Largest illuminated advertisement sign in the world.

The castle still holds traces of the abandoned Roman fort it was built atop.

On this wooded path, a stained-glass window creates a spellbinding forest cathedral.

Fascinating town where normal life interfaces with the occult.

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

Museum about life, death, and cannibalism in the Stone Age.

Eighty million natural history specimens call this gargantuan museum home.

The longest hedge maze in the world.

A beautiful and classically designed villa, with an hourly infestation of monsters.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Macabre astrological automaton clock dating to the late 1400s.

Famously misunderstood wonder of the ancient world

Once a bustling fishing village and trading post, today these Cape Verde ruins provide a home only for seabirds and turtles.

On La Gomera, "Silbadors" communicate in a 4,000-word language of whistles.

Constructed from recycled wrought iron railroad tracks, it's been described as the most beautiful seaside pier in England.

A open air theatre built on a cliff by an eccentric British woman.

The largest greenhouse in the world is home to over one million types of plants.

400-year-old garden, restored to beauty.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.