Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

A 600-year-old elm tree with a built-in seat and thatched roof.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

The cave of a 12th-century hermit is still visited and venerated today.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

In the heart of Luxembourg's "little Switzerland" weaves a breathtaking natural sandstone canyon with a mythological past.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

This Luxembourg cave is covered in cryptic looking marks left by mining activity.

A beautiful gorge filled with streams and waterfalls.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A series of playful yellow penguins share a serious message about the environment.

Each year, Germany's "City of Dragons" slays the world's largest walking robot.

Beloved children's TV characters freckle the German city's streets.

This historic stone bridge has an entire neighborhood clinging to its sides.

A small museum dedicated to the small—but mighty—Nürnberger Rostbratwurst.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

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

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

This magenta statue commemorates the legendary marriage between a mermaid and the city's founder.

Healing waters from a holy well, previously used by locals for doing laundry.