A heavy oak door marked “Prefects Only” leads into one of the most extravagant rooms in the castle, with metallic gold wallpaper, large tiered chandeliers, and intricate marble floors and columns. One side of this round room is made of enchanted glass, which can be seen through from the inside, but not from the outside, and overlooks the gardens and greenhouses below. Tapping the nose of the decorative statue of a dragon reveals a spiraling staircase which leads down into a large pool area, complete with lockers, bubble baths, slides, and even a muggle invention: poolside lounge chairs!