A spiralling hourglass-shaped tower rises from the forests in Denmark.

An air of mystery pervades this modern-day singing Stonehenge.

According to legend, this boat-shaped henge is built over the grave of a mythic king.

This sublime architectural marvel is a rare example of an expressionist church.

A natural wonder in south Denmark.

Nordic giants resurrected from the sea and restored to their former greatness.

This World War II airfield enjoys a second life as a public park.

Six beautiful wooden giants are hidden around Copenhagen.

An artist has turned what most people would consider a bathroom nightmare into a work of political art.

This chimerical bridge/tunnel appears to dead end right into the sea.

This Scandinavian island is the site of the first modern observatory.

Old Danish castle immortalized in Shakespeare's Hamlet.

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

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

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Hans Christian Andersen for the postmodern world.

Danish observation tower designed to look like a giant beer bottle.

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

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

Berlin's old airport.

A 12th-century fortress containing some of Berlin's oldest buildings.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Peek through the gates at this oasis from the city, full of Old English charm.