Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

Europe's first floating restaurant is home to a hilarious legend.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

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

This canyon is comprised of gorgeous waters and magnificent basalt columns.

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

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

In Northeastern Iceland lies something of an oxymoron: a steaming desert.

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

The most powerful waterfall in all of Europe.

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

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.