The world of One Piece is incredibly fascinating, not only for all the adventures that await the Straw Hats but also because of the sheer intricacy and mystery of the locations and the world itself. The planet is divided into four distinct seas; the North, South, East, and West Blues, each containing various islands and unique cultures. These seas are initially divided by a strip of water known as the Grand Line and the other division comes from a ring-like continent formation that circles the planet called the Red Line.