The billboard he altered on State Street right here in Salt Lake City.
In park city he left this intriguing image at the local coffee shop.
And just to prove I was there, here's my Self Portrait with Banksy.
Maybe my favorite image left by Banksy in Park City is this rat (a classic Banksy subject) wearing 3-D movie glasses, which seems strangely appropriate since this year Sundance screened a 3-D documentary called Cane Toads: The Conquest. Special thanks to Felix for the photo of this image found on a back door to the Egyptian Theater.