detailed architectural model of a fortress with a church at its center

detailed architectural model of a fortress with a church at its center. The fortress walls are constructed from grey stone blocks, with crenellations at the top. There are several towers, some with internal stairs visible. Small figures representing people are placed within the fortress, engaged in various activities. One figure appears to be operating a pulley system. The church has a red-tiled roof and features arched windows and red brick detailing on its stone walls. The model is situated on a textured base resembling rocky terrain. This model represents the "Medieval Fortress and Monastery of St. Nicholas" located in Varna, Bulgaria.