Make sure you see Roger Hiorns' sensational sculpture Seizure, 2008/2013, bought for the Arts Council Collection with help from Art Fund. Hiorns pumped 75,000 litres of liquid copper sulphate into a former council flat, which crystallised over the walls, floor, ceiling and bath, transforming it into a glittering crystal landscape. Facing demolition, the 31-tonne sculpture was extracted from its original location in 2011 and transported to a permanent home at YSP.
The park is also home to the first work ever commissioned by Art Fund, James Turrell's Deer Shelter Skyspace. A large square chamber with an aperture cut into the roof, it offers a heightened vision of the sky – giving the appearance of a trompe l'oeil painting. His work does not disturb the tranquility of the site, but creates a place of contemplation and revelation, harnessing the changing light of the Yorkshire landscape. The commission used money set aside to celebrate Art Fund's centenary.