The bright red stripes streaking across the rocks are the star feature at this Icelandic waterfall.

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

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

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

This elegant arc of a waterfall marks a religious turning point.

The most powerful waterfall in all of Europe.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Rising from the sea like a stone monster.

Medicinal spa created with the discharge from a geothermal energy plant.

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

The oldest Jewish cemetery in Europe survived Hitler's Germany.

The fairy tale castle of the "fairy-tale king."

A unique bridge with an equally unique view.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

The prototype for all Nazi concentration camps.

The footprint of a frustrated devil in Munich's Cathedral.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

King Ludwig I's collection of beautiful women.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

A fascinating insight into daily life in the Eastern Bloc.

The most visited, and possibly most controversial, museum in Germany.

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