Not quite the cultural gateway between China and Sweden its designer imagined.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

A lush oasis full of vibrant plants and striking geometric displays.

A shrine-like museum entirely dedicated to soccer superstar Cristiano Ronaldo.

Crafted from ocean litter, this sculpture highlights the ills of overconsumption.

A micronation on an islet along the coast of a Portuguese island.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

A historic fire call point.

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

An astonishingly accurate water clock that doubles as an hourly spectacle in this Berlin shopping area.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

A miniature desert appears out of nowhere on the lush isle of Lemnos, like something out of a Greek myth.

An alien landscape on the banks of the Aegean Sea.

The palace for King Gustav III was never completed, but the foundation remains tucked away in this city park.

From a distance, this structure looks like an ordinary office building but a closer inspection reveals a unique facade.

A concrete Picasso in the middle of a student housing complex on the outskirts of Stockholm.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

This unique sculpture is often overlooked by pedestrians.

Stockholm's deepest subway station is also a stunning ecological wonder.

The scars of a remarkably organized public protest to save 13 elm trees are still visible in this Stockholm park.

Small Easter eggs are hidden in the ventilation holes of the city's newest trains.

Although rarely used, there is still a hidden room for the royal family at the Stockholm central station.

What looks like a birch tree smushed between two pieces of glass often confounds commuters.