Another shot from Antony Gormley's exhibition at the Royal Academy. This piece is about the organic elements of earth, water and air. One of the rooms is filled with clay and sea water and the work reacts over time to the atmosphere, changing its smell and colour. Here's an interesting article on how the piece worked when it was exhibited in the US, Germany and China: http://www.antonygormley.com/projects/item-view/id/265