On the Central Swabian Alb you can find the most castles and palaces in whole Germany. They were usually abandoned in the 16th century and therefore ruins now. The ruins which are listed here are secured and usually freely accessible for visitors. They offer an interesting insight into the living conditions and fortification techniques of the medieval time. The view of the ruins show a dreamlike surrounding. Guided tours to individual castles are offered by the Alb-Guide and the Swabian Alb- Association.