This unnamed Musketeer Building acts as the Musketeer Headquarters. It includes an unknown measurement of rooms including Pete's Office and Bathroom. At the bottom is the Large Room where Mickey, Donald and Goofy used to live. It is unknown who lives in that room now. There is also the Washing Room where they used to wash the musketeer uniforms. It is unknown who washes the uniforms now.
Outside is the Courtyard where the musketeers train. The entrance is out on the Porch, site of two important occasions: the bodyguard recruiting because Minnie was furious, and the Knighthood of Mickey, Donald and Goofy.