Thingvellir, Iceland, where the European and America tectonic plates meet each othe - Stockfoto

Thingvellir park lies in a rift valley that marks the crest of the Mid-Atlantic Ridge and the boundary between the North American and Eurasian tectonic plates. To its south lies Þingvallavatn, the largest natural lake in Iceland. The only place on earth where you can see two tectonic plates colliding.