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

After funding was cut for a memorial to the Danish author, the sculptor had his statue ceremonially lowered into the city harbor.

Remnants of an exploded schooner and wrecked submarines form a breakwater.

This wooden hotel is a temple to German sustainability and forest conservation.

Executed in 1401, Exhumed in 1878, Stolen in 2010.

This dockworkers' lunch joint has been left leaning by a century of storm floods.

Hamburgers are intensely proud of their tunnel beneath the river.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

The last bastion of Roman presence north of the Alps looms over a German town.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

There has been an astronomical clock on this spot since the 14th century.

A university observatory dome painted to resemble the beloved 'Star Wars' droid.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

A historic observatory precariously perched at the "Top of Europe."

The second-highest train station in Europe.

A rare, flower-shaped example of Brutalist architecture in Switzerland.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Large Hadron Collider and the Birthplace of World Wide Web.

Unconventional site where the tracks of Zurich tramcars intersect.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.