The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

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

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

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

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.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

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.

A little sculpture with a large wardrobe.

Meet the bronze beloved pet to a family of famous peeing statues.

Brussels' favorite peeing boy has a sister.

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

The ancient tomb acts as a calendar that keeps perfect time.

An underground city of ancient quarry tunnels hid thousands of Allied soldiers in WWI.

A centuries-old complex of hand-dug stone chambers has sheltered locals in times of trouble.

Science fiction's grandfather has a fittingly marvelous tomb.

To the famous surrealist artist, liberty required two torches held high.

Since ancient times these picturesque springs have been providing bathers with healing waters.

This otherworldly French waterfall looks like its waters have turned to stone.

A man-made slag heap that you can "ski" down, and is home to the world sandboarding championships.