San Diego Comic-Con!
San Diego Comic-Con is the biggest convention for all things geek in the world. A ton of cosplay happens at this show -- even celebrities cosplay! Mostly to hide from the public though.
But hey, here's a couple of montages with a good look at some of the better outfits people created and wore. Our friend D Piddy shows off his Deadpool shenanigans, while Aggressive Comix gives us a detailed look at a wide assortment of costumes.