Scorching Sandpaper Desert is a location from Paper Mario: The Origami King. It is the main hub of the yellow streamer portion of the game, and is mostly open-world. It also branches off into smaller sections.
There are four giant Toad towers with missing gems. Once Mario obtains all gems and places them back in each open eye socket on the Toad towers, Olivia uses the Fire Vullemental's power to light up the center cauldron. After all four are lit up, Olivia uses the Earth Vellumental's power to reveal the Temple of Shrooms.
Inside the Temple of Shrooms, Mario finds and beats Hole Punch, the third major boss of the game.
There is also a hidden Sensor Lab containing the green Sensor Lab Toad.