By Low Lai Chow in Cool Travel on Friday 16 November 2012

We’ve featured Yellowstone National Park’s morning glory pool before, but this photo posted by Flickr user Arun Yenumula citing Atlas Obscura is just the most amazing puddle of rainbow we’ve seen. This famous Wyoming attraction derives its intense blue hue from thermophilic bacteria that thrives on the heat in the waters, while the red and […]

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