World 1-1 (Super Mario Bros.)

World 1-1 is the first level of World 1 and the first level of Super Mario Bros.

Layout
World 1-1 takes place above ground. At the begining of the level there is a fort in the background. There are many Brick Blocks and several Item Blocks. There are sixteen Goombas and one Koopa Troopa. There are several pipes, one of which is a Warp Pipe that leads to an underground room.