The Humber Street Gallery has a splendid new exhibition on at the moment. It runs until the end of September. On the ground floor they've got some neat little devices but further upstairs they've got this awesome cityscape made up of computer circuit boards and lights. It's constantly changing and just looks amazing. I've tried to take some pictures of it, but I've not really done it justice.
The exhibition is free, and there are loads of lovely places to eat or grab a coffee in the Humber Street area too.