Terry Pratchett's Discworld is a fantasy world created by the late, beloved author. It is a flat planet balanced on the backs of four giant elephants, who in turn stand on the back of a giant turtle, Great A'Tuin. The Discworld is
From Wikipedia
Sir Terence David John Pratchett was an English author, humorist, and satirist, best known for the Discworld series of 41 comic fantasy novels published between 1983 and 2015, and for the apocalyptic comedy novel Good Omens (1990), which he co-wrote with Neil Gaiman.