Vatnajokull Glacier, Iceland
As the second-largest glacier in all of Europe, it comes as no surprise that this landscape looks like it was pulled right from the moon. You might even expect an alien to jump out from the corner and scare anyone who walks by. The glacier is over 3,000 feet, or 900 meters deep. Several active volcanoes sit right beneath its surface. The most famous volcanoes are called Grímsvötn, Öræfajökull and Bárðarbunga. Unfortunately, thanks to global warming, the glacier shrinks about 3 feet or 0.9 meters per year. The glacier itself has over 30 outlet glaciers, which remain restrained in the valley (Guide to Iceland).