One Year in 120 Seconds
In 2008, Eirik Solheim of Oslo, Norway, filmed his backyard regularly for a year and compiled the results into a 40-second time-lapse video. In 2009, he did the same thing in a 120-second video. But this time, the video and audio quality are superior and the transitions smoother. You can read a post by Solheim on the technical details at the link.