I've never been to see the exhibition twice but couldn't resist the opportunity to go to the Baltic in Gateshead to see Daniel Buren's exhibition, particularly as they lifted the photography ban. Called 'Catch as catch can' it comprised "a series of large sculptural mirrors in the space, positioned to reflect and refract light from coloured windows above". Even small children loved it! The outside windows of the Baltic had also been covered with colour making for some interesting shots. It's on until 12 October so I may go again as it's always different according to the time of day and the weather. I reckon it's worth a few visits!