Expandable aircraft monument

An aircraft region, comprising:

• at least one main aisle extending along a longitudinal axis of an aircraft cabin,
• a door aisle extending substantially perpendicular to the at least one main aisle between a first and a second aircraft door, and
• an aircraft monument arranged in the door aisle comprising a first functional module,
• the first functional module including a side wall for delimiting the first functional module from at least one of a region of the aircraft cabin adjacent to the first functional module and a region of the aircraft monument adjacent to the first functional module,
• the side wall being movable between a first and a second operational position and comprises a side-wall region which merely in the second operational position of the side wall serves for delimiting the first functional module from a region of the aircraft cabin adjacent to the first functional module, so that a movement of the side wall out of its first operational position into its second operational position results in an enlargement of a base area of the first functional module,
• wherein the side wall of the first functional module is adapted to serve in its first operational position as a guidance device for passengers moving in the course of disembarking from the aircraft, or in the event of an emergency evacuation of the aircraft in the direction of at least one of the first and the second aircraft door.