Today's photo-of-the-day was taken on a late winter day at Iceland's
Blue Lagoon, a geothermal spa in a lava field in southwestern Iceland. It is supplied with water used in the nearby Svartsengi geothermal power station. Boiling water is pumped up from underground. Steam drives turbines to generate electricity. When the water cools too much to generate any more electricity, it is released into ponds for humans to enjoy warm bathing even on cold winter days.
Bonus photo after the jump.
Silica Hotel on a lava field
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