Grand Staircase

The Grand Staircase exists only in the Harry potter films. It is a massive room, mainly used to access each floor of the castle, including the dungeons. There are hundreds of portraits covering the walls in this room. The multiple staircases in the Grand Staircase like to move around, from platform to platform. The room is shown many times throughout the movies and video games. The Fat Lady's portrait is on the seventh floor landing in the films; however, in the first two films, her portrait is shown in a corridor somewhere else.