Dark Land

Dark Land is the kingdom of the Koopa Troop in Super Mario Bros. 3. It is a part of the Mushroom Kingdom that has volcanoes, which produces smoke and blocks out the sun's light. This is where Bowser's Castle is located and home to the Koopa kingdom. In the game, Mario had to defeat most of the Koopa Troop to reach and defeat Bowser in his castle to rescue the princess.