Ambientally embedded cultural monuments, towers, fortresses and cities add a value to the whole valley of the river Una along the greater part of the National Park. The area of the National Park is undoubtedly inhabited since prehistoric times from the ancient times and Middle Ages until the present day. This is evidenced by numerous archaeological sites, the remains of numerous forts, ruins and still existing medieval cities. The most numerous are the prehistoric sites (Bronze Age and Iron Age). These are, in general, altitude villages and ruins, located in privileged geostrategic position (above Une, as a major road), with visual communication, and certainly near the water. Such settlements had defensive walls with hard-to-access roads and entrances so that they are relatively easily recognizable and visible in some places even today, if the stone material is not blown away or used for other purposes. Numerous surviving placenames, city, fort and similar, were a safe way of life then, because they were safe, surrounded by thick walls as a protection from the potential enemy.
Particular emphasis from the sites or the localities from the Middle Ages and the Ottoman period is on: (...)