The CN Tower in Toronto is lit Blood Red Today, for World AIDS Day (WAD).
Today, December 1, 2011 marks the 23rd commemoration of World AIDS Day.
2011 also marks 30 years of identifying the virus that causes AIDS.
This year, World AIDS Day is focused on the goal of ending the transmission of HIV from mothers to babies by 2015.
Sir Elton John lent his name to the cause in Australia, where they had Red fireworks and the sails of the Sydney Opera House glowed a brilliant red.