seven meters in diameter. The courtyard side of the castle is also preceded by two bay-like stair towers, which form the only connection between the upper floors. In total, the castle includes two halls, the vestibule, the castle chapel and twelve middle rooms, twelve tower rooms and eleven corner rooms. The total living space of the building is around 3,000 m2 (32290 sq. ft.). The gable ends of the facades as well as the wall dormers were once curved and provided with decorative elements typical of the Renaissance, but these decorations were removed in the course of a classicist purification in the 19th century, resulting in the current, somewhat austere appearance of the castle. In 1768 the middle roof received the baroque ridge turret, the wall dormers removed in the 19th century were renewed from 1906 onwards. Aside from changes to the decorations, the exterior of the castle has remained largely unchanged for more than 400 years. Interiors The floors of the castle were once assigned to different functions. The design of most of the rooms goes back to the Baroque era, only some of the paintings from the time of construction have survived. Most of the furnishings in the palace were auctioned off in 1824 after the death of Anna Carolina or transferred to Berlin after the events of 1864. The furniture that can be viewed today is stylistically mostly from the 19th century and was brought here from Gottorf Castle and Kiel Castle. It is one of the richest collections of this kind in Schleswig-Holstein. Basement In the basement, which is about halfway below the water level, the kitchen and various storage rooms used to be located. The basement rooms have their own entrances so that staff or visitors to the palace chapel, which was later made public, did not have to enter the vestibule. The former prison is located under the entrance area on the first floor, but it was probably never used for this purpose. Basement and chapel The basement contains the main entrance and is accessed via the castle bridge. The portal, framed by the stair towers, leads directly into the entrance hall, the vestibule known as the Green Hall. The green hall was always furnished in a very simple way, but the floor is remarkable, with its footplates which are made of Öland stone and show imprints of fossils in many places. The rooms