Turning famous landmarks (RED) on World AIDS Day has become a bit of a tradition at (RED). And once again, on December 1st 2011, cities around the world illuminated landmarks (RED) to honor World AIDS Day. The landmark lightings help raise awareness and support for our goal of eliminating mother-to-child transmission of HIV by 2015. The lightings bring awareness of the issue to a local level with many individual cities hosting events. Click here for a full list of all the landmarks and cities who participated this year.