On the 15th of January, 2011, the temperature in Skellefteå, Sweden dropped to minus 27 degrees. The extreme cold helped beautiful ice formations to appear on residential windows.
Photo of Skellefteå window by Paul in Skelleftea, online courtesy Flickr. Copyright, Paul in Skelleftea, all rights reserved. To see more of this photographer's work, visit his photostream at Flickr.