Today, the Osthofentor houses the remains of the town's armory, in particular the impressive ammunition stock of around 25,000 crossbow bolts from the 14th to 16th centuries. The organization of the town's defences in the Middle Ages is illustrated on display boards. The topographical development of the town of Soest from around 1000 to 1900 is illustrated using further information boards and two models of the town, which are set up in the former recreation room of the gate guard, and a systematic overview of the most important stages in the town's history is provided.
Note: Unfortunately, the Osthofentor Museum is not suitable for people with walking difficulties due to the narrow spiral staircases.