The Town Fortification can be visited
Town FortificationBeeskow
Beeskow Town Fortification

The Historic Town Hall+
The historic town hall, a magnificent example of Gothic architecture, dates back to the 14th century. It served as the administrative and political center of the city for centuries. The building has undergone several renovations and additions over time, reflecting different architectural styles and historical periods.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://de.wikipedia.org/wiki/Datei:Beeskow_-_Stadtmauer_2.jpg
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: 52.1704, 14.2455