A concrete mushroom that divided Stockholm residents for nearly a century.

The remains of Alfred Nobel's first nitroglycerine factory can still be found on the shores of a Swedish bay.

An entire shopping mall and industrial terrain named for the time the king of Sweden's car went into a ditch.

A statue of the heroic plumber stands outside a company that bluffed its way into being Nintendo's Scandinavian distributor.

A unique seaside cave where Aleister Crowley faked his own death.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

A colossal strolling Pinocchio that was greeted with more outrage than whimsy.

These waste baskets play a few risque messages to discourage littering.

This innocuous-looking button may have been used to assassinate a king.

A railway, a waterway, and a roadway all in one, suspended over a rushing river.

This Swedish sculpture park is a unique combination of ancient ruins and modern art.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

Visit the home of Sweden's beloved fictional character, Pippi Longstocking.

This fantastic cave remained unexplored until 1948 when three schoolboys discovered a hidden entrance.

Known locally as the Jungfrutornet, this Medieval tower hides a dark legend.

This cobblestoned medieval-style town was entirely constructed in the 1990s and 2000s.

The library's graceful rotunda is like a bibliophile's temple.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

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

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

A former suicide bridge is now accumulating symbols of love instead of a body count.