We really liked the castle chapel and everything has already been said from the previous comment. The path with stairs up to the chapel is easy to walk, you also have a beautiful view over to the Lech.
The course of the wall or rampart can still be clearly traced in today's city plan. It led around the city parish church to the demolished "Fronvesttor" and further to the preserved "Fronfestturm" ("Witches' Tower").
Mighty saddle roof building with two round corner towers in the west and two polygonal corner bays in the east, rebuilt after a fire in 1589, extended in the first half of the 17th century