This mysterious sign claims an American astronomer haunts the building—but is it true?

The standard measure of Lagom, a measure of what is enough.

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

These ancient rune stones plucked from the countryside now call this university park home.

A living descendant of the famous tree that helped Isaac Newton develop the theory of gravity.

This may be the world's only drive-through windmill.

At the base of this tower, a plaque marks the original center point of the Netherlands.

One of the oldest wine cellars in Germany is now a restaurant beneath Bremen's town hall.

One room inside this building mesmerizes all with its parabolic dome.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

Metal dinosaurs lurk in a sculpture garden on the outskirts of a popular resort town.

Constructed during the roaring 20s, this restored historic hotel recalls its past as home to the first in-hotel distillery.

Malmö’s bronze prince yearns for Copenhagen's 'Little Mermaid'—and his missing crown jewels.

This cone-shaped bomb shelter, modeled on German design, is a rare WWII relic that never saw use but still looms over the harbor.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

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

This place bears witness to the loss of many lives during WWII, and stands in stark contrast to the American Cemetery.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

The Lone Star plaque hangs in a bombed-out bunker in Normandy to honor a Texan colonel's heroic actions on D-Day.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.