The City Wall can be visited
Town FortificationNordwestuckermark - Fürstenwerder
Town Fortification Fürstenwerder-Woldegker Gate

The Historic Building+
History and Architecture+
The historic building, known as "Altes Rathaus" (Old Town Hall), dates back to the the 14th century. It was originally constructed as a merchant's house and later served as the seat of the city council for several centuries.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Stadttor_Fuerstenwerder01.jpg?uselang=de
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 53.3942, 13.5813