The article discusses the natural and historic heritage of medieval towns in the Opole Silesia region in the context of their ability to take advantage of their potential for sustainable development, especially in tourism. The chosen environmental, urban, architectural, and landscape factors were compared through this aspect and subjected to a multidimensional comparative analysis. The research studies applied mostly archival materials, contemporary topographic maps, statistical data, and both landscape as well as urban field studies. As a result, the studies indicated that the natural conditions of the locations, the preservation level of the urban system along with its development trends, and the areas of the old fortifications with their accompanying greenery constitute these towns’ very value and identity. As they combine elements of nature and culture, they may serve as the basis for development of tourism, which is likely to contribute to the social and economic revitalization of the region itself. What may play a major role in the quest for sustainable development are the urban greenery systems to be designed based on former fortification areas, city greenery, and natural environmental resources, which have been integral elements of these towns over many past centuries.

中文翻译：

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以奥波莱省历史城镇为例，特定地点的决定因素和中世纪城市防御工事的遗迹作为创建城市绿化系统的潜力

本文讨论了奥波莱西里西亚地区中世纪城镇的自然和历史遗产，讨论了它们利用可持续发展潜力的能力，尤其是在旅游业方面。选择的环境、城市、建筑和景观因素通过这方面进行比较，并进行多维比较分析。研究主要应用档案材料、当代地形图、统计数据以及景观和城市实地研究。因此，研究表明，地点的自然条件、城市系统的保存水平及其发展趋势，以及古老的防御工事区域及其伴随的绿化，构成了这些城镇的价值和特征。由于它们结合了自然和文化元素，它们可以作为旅游业发展的基础，这可能有助于该地区本身的社会和经济振兴。在寻求可持续发展的过程中，可能发挥主要作用的是基于前防御工事区、城市绿化和自然环境资源设计的城市绿化系统，这些系统在过去几个世纪中一直是这些城镇的组成部分。