This semi-secret storybook hedge maze is also the oldest garden in the city.

The haunting remains of a World War I fort perched atop a mountain.

Deep in the forest of northern Denmark, this secret underground bunker was built at the height of the Cold War.

Contrasting the old concrete courthouse beneath, a modern and colorful residential marvel has emerged, stirring both acclaim and controversy.

A stoic sculpture that overlooks the waters.

A hands-on traveling collection of the innovative devices of yesteryear.

The rusted hull of a WWII German destroyer pokes above the surface in a Norwegian fjord.

This solitary convex mirror sculpture at an abandoned ferry station at the edge of a fjord reflects the scenery back at the viewer.

This roadside attraction looks like a flying saucer parked atop the tundra.

Stockholm's famed ghost train is now on display at an art park in northern Sweden.

This handsomely carved wooden church is more than 800 years old.

An artistic tribute to the famous singer, just around the corner from where he was born.

This simple roadside art installation ended up sparking a folk art movement and a controversy of international proportions.

From under the bed of one of the co-founders, this server helped launch the notorious file-sharing website.

An eclectic sculpture park rises atop a giant pile of ashes in Sweden.

This makeshift concrete bunker is an unusual reminder of the Cold War.

A former hen house turned curiosity cabinet displays one man's lifelong fascination with cannibalism.

According to legend, this structure was inspired by the Tower of Babel and built in a 19th-century industrialist's yard so he could walk his dogs without leaving home.

This Swedish astronomical clock was in storage for almost a century before its glorious workings were put on display once more.

Home to 200 plaster casts of Scandinavian proboscises.

The marker that allows students all over the world to be late for class.

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

A collection of modern and vintage pinball machines housed in the cellar of a 15th-century building.

This collection of 80 polarizing foods aims to challenge your subjective notions of repulsion.