The aurora borealis is a magnificent natural light phenomenon in the sky that has captured the human imagination and given rise to lots of legends and mythology. For the Norse people, when the Valkyries, female warriors, mounted upon horses and armed with helmets and spears, rioe forth on their errand, their armour sheds a strange flickering light, which flashed up over the northern skies, making what Men call the "Northern Lights". Þingvellir is an UNESCO World Heritage Site in southwestern Iceland. It lies in a rift valley that marks the crest of the Mid-Atlantic Ridge.
