This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

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

A small man-controlled waterfall powers an Art Nouveau elevator and is accessed via narrow gauge, solar-powered tramway.

The bridge that cost Germany a World Heritage Site.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

Hamburgers are intensely proud of their tunnel beneath the river.

A peculiar trapezoidal building covered with wonderful humorous reliefs.

This strange sculpture is an enigmatic icon of this medieval German town.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.

Time stands still at this serene burial ground in the center of Budapest.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Op-art architecture designed for happiness.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

A giant portrait of an ancient king looms over the river.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

A Serbian church lit by chandeliers made of weapons.

Featuring Zürich's only authentic 14th-century plague doctor's uniform!

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

A former imperial sea-fortress and Soviet prison.

The Guardian of Tallinn.