Today's flashback looks at Thingvellir National Park. This park is absolutely gorgeous, and it's huge! There's many reasons why it's one of the most famous sites in Iceland. In this photo, you can see both the North American and Eurasian plates. This is the only place in the world you can see a plate boundary- all the others are underwater!
The rocks in and around Thingvellir are volcanic basalt. Due to the way that basalt cools, it often forms these honeycomb-shaped columns. Basalt is the most common rock on Earth! The waterfall here has a story behind it; according to the stories, early Icelanders took it upon themselves to change the coarse of the stream and actually created this waterfall. There is actually some archaeological evidence that suggests this may be true!
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