Brendan Nystedt of Wired live-tweeted the group effort to build the biggest Lego set ever made. That's 7,541 pieces that all need to go in their proper place to create an enormous Millennium Falcon. Why would they do this?
Because it's there:
This isn't a project just anyone would take on, but the Internet really enjoyed watching the attempt from behind their screens.
What a journey it was: