What better way to mark 150 days to London 2012 than looking at the iconic posters that have helped crank up the excitement at previous Olympics?
![Looking Back at 120 Years of Olympic Poster Design [100 Posters]](https://i.pinimg.com/originals/18/e2/e9/18e2e95c8c1ce620a9ac1ab5ab320d41.jpg)
