If you dig mysterious silent comics then you should definitely take a peek at The Intrepid Girlbot, the tale of a sad(?) robot girl who appears to destroy everything she touches. You might also take a glance at Girly, where the current story arc also features a distinct lack of dialog (dialog that isn't "meow" anyway).
Remember when I mentioned Nemo Ramjet's Dinosauroid project a while back? He's still at it, and now with a collaborator! Unfortunately Nemo's homepage has been down for some time but there are still a few samples on his DA site. For those who missed it, the gist here is that Dinosaurs didn't die out, but rather than developing into creepy human-like forms, intelligent bird-like creatures fill the ecological niche of early proto-human. It's very cool!