Marvel at this massive waterspout fueled by the incoming tide.

Volcanic rocks ground down into sand make this Spanish beach as black as night.

These wooden balconies that are both decorative and functional.

A series of well-preserved ruins show the culture of the ancient Benehoaritas people.

The world's oldest rose is so tough it survived being bombed in World War II.

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

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

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

Brussels' favorite peeing boy has a sister.

Cozy basement bar sports an inventory of over 2,000 beers.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

This cheese shop also houses a museum devoted to Dutch dairy.

Twisted buildings adorn the banks of the Rhine river.

This futuristic German television spire is actually the world's largest digital clock.

This massive steel pyramid can be entered by a set of jagged steps that let visitors stand in its heart.

An industrial relic is now one of Europe's most staggering art spaces.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

The first recognized Neanderthal remains were found in this now-lost cave in 1856.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Tiny castle in the middle of the Rhine made you pay to pass.

Legendary site where an evil bishop was devoured by rodents.

A ruined castle stands atop a hill surrounded by dragon lore.