The Olympic Games FB page posted this gallery of Olympics posters through history.
Watch as the style transitions from neoclassicism to awesome art nouveau, through homoerotic constructivism, hyper-nationalism, and mid-century minimalism to shit, shitty and shittier. (Although Atlanta's not bad.)
I took the liberty of adding London 2012, the "XXX Olympiad" that has been described as pornographic Simpsons fanfic:
Let the Games begin...