|World location||World 3|
|Previous level||World 2-Airship|
|Next level||World 3-2|
|Game(s)||Super Mario 3D Land|
World 3-1 is the eleventh level of Super Mario 3D Land.
The level opens up with Mario falling into a desert, near a large brick tower. There is a cannon on a small building next to the tower. The first part of the level is navigating the side of the tower after blasting onto the side via the cannon. Once inside, the level view becomes top-down. Inside the tower are more enemies and more dangerous traps to snare Mario. The top of the first area inside the tower contains the Checkpoint of the level. Afterward, Mario goes outside to climb up some moving stones to the third floor on the inside. This area contains a total of ten Wallops. On the top of the tower is a small stone structure that can be used to reach the top of the Flagpole.
Enemies that appeared in World 3-1: