Iceland is a volcanic island full of natural particularities. The landscape is not very old, geologically speaking. It is an example of how our early earth once used to look.
Iceland is for me one of the most interesting nature place on the planet. Because here you can see and feel the pulse of the earth. And maybe we can understand how emerged our nice nature.
In the Iceland gallery are some photos from the Myvatn area in the north of Iceland. They shows the steaming holes and solfatar fields from this region.
All facts of the island on wikipedia.