Turn any photo into a dot grid artwork with these Photoshop actions. You'll get great results with dots that change size. They get larger in brighter areas and smaller in darker areas. Free download available.
El Comercio newspaper offices after | © Miguel Bellido / WWF
Golden Gate Bridge after lights out, during EARTH HOUR 2008 in San Fransisco, California, United States. | © John Storey / WWF-US
Earth Hour 2010. Oslo Opera House | © Heiko Junge / SCANPIX
Burj Al Arab during Earth Hour, Dubai, UAE, Saturday 27 March 2010 | © Jumeirah Group
Strip from Mandalay Bay, Las Vegas, NV, USA with lights out. | © WWF / Neill Miller
Billboards and lights are turned off for the Earth Hour event at Yonge-Dundas Square, Toronto, Ontario, Canada. | © Bill Ivy/WWF-Canada
Lights off - Lions Gate Bridge, Vancouver, British Columbia, Canada. | © Jeremiah Armstrong / WWF-Canada
Lights out in Yas Island, Abu Dhabi, UAE | © EAA
Overview of Hong Kong Island and Kowloon with lights on before switching them off to mark Earth Hour 2010. | © Ringo Ma
LAX Airport, Los Angeles, CA, USA with lights out. | © WWF / Asbjorn Christiansen
Ars Electronica Center in Linz after switching the lights off | © Stadt Linz / Bärbel Wagner
National Theatre, Sofia, capital of Bulgaria – After | © Adelina Dzheneva
Llghts out at Tokyo Tower. Tokyo, Japan. Earth Hour 2010. | © WWF Japan / Osamu Yokohagi