World 1-1

The first world in Super Mario Bros. that begins with a coin block, a mushroom, more coin blocks, then has four pipes. The fourth one leading to a secret underground area where one can get coins. Then there is a secret 1up mushroom, a pit, a fire flower, another pit, more coin blocks, a starman, some blocks, another pit, a pipe that comes out of the underground entrance, a coin block, another pipe, and blocks designed like stairs leading to the flagpole. One of the most iconic levels in video game history.