Below you will find a collection of the Sifter’s top 25 galleries posted in 2011. Often the most popular posts on the site, the galleries not only take our readers around the world, but back in time as well. Some galleries even show us the farthest reaching points of the Cosmos and the thriving microscopic world invisible to the human eye. Click any image or title to be taken to the original post, enjoy! And see ya’ll in 2012.