This Communist-era residential block is one of the longest residential building in Europe.

This 13th century Gothic brick castle is the largest in the world by surface area.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

This beloved wartime mascot has been honored with not just one, but two statues.

The hillside where Edvard Munch experienced the panic attack that inspired “The Scream” offers one of the most striking evening views in Oslo.

An impressive museum dedicated to the resource that made the Scandinavian country rich.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

A favorite with sightseers and locals alike, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

Incredible labyrinth of man made caves.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

The hairpin turns in this mountain road take the shape of a letter—is it a coincidence or a symbol of love?

For over two centuries, this palace served as a residence for the Holy Roman Inquisition's leaders, a courthouse, and a prison.

Valletta’s outdoor theatre stands within the ruins of a 19th-century opera house.

The Jesus tree of Malta bears a striking resemblance to Christ on the cross.

Cemetery honors Americans who died during WWII and is the resting place of Gen. George S. Patton.

The ruins of one of the most important Roman villas north of the Alps.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

A stunning Victorian abbey and walled garden on a lakefront.