The “Perpetual (Tropical) Sunshine” installation (from Switzerland’s Fabric Lab specializing in “Electronic Architecture”) is “out of sync both temporally and climactically. [It consists of a] spatial screen, composed of 300 infrared light bulbs, and transposes the state and image of a summer sun on the 23rd South parallel, thanks to live information transmitted by a network of weather stations all the Tropic of Capricorn and around the globe. Thus, the spectator can constantly track the path of the sun, thereby experiencing an abstract and never-ending, planetary form of day and of summer, across longitudes and time zones.” Pretty cool project and the web-interface allows you to select timezones on a map of the globe. There’s also a slideshow that shows how the project was built.