Dark Land is Bowser's kingdom, also known as the eighth and final world, which appears in Super Mario Bros. 3. The place itself is where Bowser's Castle stands at in the game. It is also the Koopa Troop's main base of operations, and because of this, the area is heavily defended by Bowser's military forces. Large numbers of tanks and airships patrol these lands, intercepting anyone brave enough to invade the kingdom. Dark Land is also a land of volcanoes that make soot go in the air blocking the sunlight. It is so dark in some areas that a circle of light appears around Mario or Luigi.