Valencia's actually my first stop. I'm going for the Las Fallas fireworks festival, which someone recommended to me as the wildest-assed fireworks festival in the world. I've recently started going to the bonfire night celebrations in Lewes, Sussex, which are pretty crazy, and I've a taste for more ;-)
So, among all the street paella, burning effigies and deafness, will try and check out the museum, thank!