Overview: from Australia The 1981 Mastermind International takes place in the Concert Hall of the Sydney Opera House and is introduced by Huw Evans. The contestants are: Fred Housego (United Kingdom): The Tower of London Bill Fitzgerald (Australia): The Administrations of 20th-century United States Presidents David Harvey (New Zealand): J. R. R. Tolkien 's The Lord of the Rings David Ingoldsby (Republic of Ireland): History of Rock Music 1955-1975