World 2-3 (Super Mario Bros. 3)
From the Super Mario Wiki
The level is main up of several pyramid structures made up of either Semi-Solid Platforms or Brick Blocks. The first pyramid has a Fire Snake, a Koopa Troopa, and a power-up in the ? Block to the right on top, the second pyramid has two Fire Snakes and a Super Star power-up in the right ? Block on top, and the third and tallest pyramid has more Koopa Troopas and a Fire Snake, along with a power-up in the ? Block to the left on top. Afterward are the pyramid structures made up of Brick Blocks with several Pile Driver Micro-Goombas hidden within. Above the Brick Block pyramids is a hidden P Switch that can turn the pyramids into Coins and allow the player to collect a 1-Up Mushroom. Beyond the brick pyramids is an enclosed structure with two Koopa Troopas moving around inside it. By kicking a Koopa Troopa into the bricks, the player can uncover the Warp Pipe that leads to the goal.