picture by liquidnight
The Owl Tree started as just a painted tree pasted on a wall, but a great number of the street artists in Seattle have contributed to it now. There are stickers, installations and stencils all placed carefully together to form one piece. Unlike most graffiti that just gets changed by anyone who happens by, this piece was planned and advertised. Its location is secret.
I wish there could be more collaborative art like this. Imagine a gallery where you could add your own painting or modify someone else's.