The heritage of Slavonia includes two exceptionally valuable forts in Osijek and Slavonski Brod.
Osijek’s Tvrđa represents a successful combination of military, urban/administrative and sacral architectures. Its central square is dominated by the General Barracks building from 1726 with the most luxurious stone baroque portal in Croatia, and Kužni pil (a monument to Holy Trinity), the only one of its kind in Croatia in addition to the one in Požega.
Built during the Habsburg Empire era, the Brod Fort still lives in its original form. This is the largest fort from its era with the largest central building. Its fortification system used to ensure permanent peace for Slavonia for two and a half centuries.