Map Room
From The Maze Runner wiki
The Map Room was a place in the Glade where the Maze Runners stored their maps they made of the Maze, believing there to be an answer in the patterns. Upon returning from the Maze, the Runners would disappear for hours, creating maps from their memory of their route through the maze. They would then study the maps, looking for patterns.
The Map Room was burnt down as the Ending approached. However, after Alby's warning, Newt and Minho moved the Maps to the weapons room in The Homestead and placed dummies in the Map Room instead. Alby later confessed to burning the room down.