Just got back from 3 days visiting Bristol, especially for the Banksy vs Bristol Museum exhibition. There is one room fully dedicated to his work, but the museum also gave him the freedom to alter pieces from the permanent collection. The effect is that you simply keep on searching every room for his work, very entertaining and sometimes extremely funny. More info on http://www.banksy.co.uk/, you still have time untill the 31st of august, definitely worth a visit! Another interesting fact is that you can actually go out on the streets and start searching for the still remaining graffiti pieces from Banksy on the walls or amaze yourself at the art from other artists, which are really astonishing most of the time ..