Boundary between Europe (on the left) and America at Thingvellir.
Thingvellir (correct spelling is Þingvellir but I am afraid lots of people can not properly see this letter) is a must visit location for all geologists visiting Iceland and it is one of the Icelandic geological landmarks which is visited by many tourists who are not particularly interested in geology. Mainly because it is close to Reykjavik — the capital and most populous town in Iceland and also because it is truly remarkable to see so well displayed boundary of two major tectonic plates and last but not least this is the original location of the oldest parliament in the world — The Althingi.
I took this picture few kilometers away from the point visited by most tourists. I think it shows the graben bounded by normal faults even better and I also managed to avoid hordes of tourists who would otherwise place themselves on every photo I take.