The last Viking king of Denmark is buried inside the crypt of this cathedral.

Denmark's famous pseudo-hill.

This striking royal residence is the largest Renaissance-style castle in Scandinavia.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.

Iron Age "bog person" preserved for over 2,300 years.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Old Danish castle immortalized in Shakespeare's Hamlet.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Generations have refused to move this doll from its dusty resting place to preserve a castle from a watery fate.

An exhibition of preserved locomotives housed in a 1950s depot shows the history of Denmark's railway.

This museum is a portal to 20th-century Denmark.

Four alabaster giants contemplate the tides on the shore of Denmark.