An aircraft monument comprising a desk and a movable part that is mounted to the aircraft monument by means of an attachment device. The movable part is pivotable about an axis between a first position in which the movable part covers a first area of the desk and is essentially arranged inside of the aircraft monument such that its front faces in a first direction towards the back of the aircraft monument, and a second position in which the movable part is at least partially arranged outside of the aircraft monument and its front faces in a second direction that crosses the first direction. The movable part, in its second position, covers a second area of the desk that is less than the first area.