Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

Eighty million natural history specimens call this gargantuan museum home.

Berlin's old airport.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

A serpentine highway twists and turns over the treacherous Norwegian Sea.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

The most powerful waterfall in all of Europe.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Walk in the footsteps of the gods and straddle two tectonic plates.

An encyclopedic collection of mammal penises.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

This tiny cabin was home to one of Iceland's most famous painters and was the only land he ever owned.

This beautiful, historic church looks like something out of a simpler past.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A sulfuric martian landscape that looks far better than it smells.

American soldiers discovered Europe's best one-liner at the end of World War II.

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.