This impressive former palace contains a hidden gem for fans of modern sculpture.

An ancient stone structure that, according to legend, was built by witches.

One of the most historical literary characters continues to stroll his hometown.

This famous writer's tombstone is a literary pilgrimage site that was publicly defiled by a rival.

With lush plants and flowers, huge trees, ponds, and hidden monuments, this place feels a bit like discovering Narnia.

This store decorated with Japanese and underground pop culture items has been the centre of Barcelona alternative fashion scenes for more than a decade.

The abandoned transportation hub hides within the Glasgow attraction it once served.

The only museum dedicated entirely to the dry stone walling technique.

This ancient gaming tool was unearthed during the construction of this former town's central square.

A rare chance to ride one of the few continuous elevators still in operation.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

This abandoned lock-up was saved because of its connection to a local football team.

The Liverpool street made famous by the Beatles is real.

The quiet field that inspired one of the most famous songs of all time.

Cathedral-like Victorian vaults are hidden within this iconic bridge.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

The townhouse where the English poet created some of his most influential work has been preserved in tribute.

A unique tribute to the millions of animals who served and died for the British military.

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

One of the world’s leading and most extensive archives on the Holocaust, the Nazi era, and genocide, this collection includes published and unpublished works, press cuttings, photographs, and eyewitness testimony.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

This 18th-century project to build the world's tallest gravity dam was never completed.