 Open space includes Chafford Gorges Nature Park, Langdon Hills Country Park and Grove House Wood, managed by Essex Wildlife Trust.Museums and historic buildings include Coalhouse Fort at East Tilbury, Tilbury Fort in Tilbury, Purfleet Heritage and Military Centre, High House, Purfleet with its historic farm buildings, the Royal Opera House's Bob and Tamar Manoukian Production Workshop, The Backstage Centre and ACME artists' studios, Thurrock Museum and Walton Hall Farm Museum.Next to Lakeside Shopping Centre is Arena Essex, a former motor sports complex, where speedway, banger and stock car racing took place.