In his sculptures, installations, and public artworks, Antony Gormley explores the relation of the human body to space and moments in time. He is well known for his sculptures that use a cast of his own body as their starting point and for his large-scale, outdoor installations such as Angel of the North (1998) and Another Place (1997). In Event Horizon (2007), which has been shown in London, Rotterdam, and New York, Gormley sited 31 body forms atop rooftops, riverbanks, and sidewalks within the dense urban environment. In One & Other (2009), a project for the Fourth Plinth in Trafalgar Square, London, he invited members of the public to create their own artwork on top of the plinth for one hour time slots over a period of 100 days.