The ridge, peaks and summit plateau of Perun Hill are very rich in the remains of prehistoric architecture. The Illyrians were largely cattle herders and preferred hilly regions. Their residential and defensive forts and funerary and ritual rock piles are a characteristic element of the cultural landscape of the hills of Podstrana.
Pišćenica is a large rock pile located above Gornja Podstrana. It is located about 1 km to the east of the Church of St George on Vršina, at an altitude of about 480 metres above sea level. It is cone-shaped and approximately 30 metres wide and 7 metres tall. It consists of rough rocks that have disintegrated into small pebbles on the top. From the southern side of this pile, on which subwalls can be noted, fragments of Illyrian and Roman ceramic ware can b found, which points towards the funerary and ritual origins of this pile. However, it could have also served as a strategic outpost, as it provided a view of the entire coastal and inland area and visual contact with other fortified positions on Perun, which was of essential importance for its builders. The border from Mutogras on the coast to the position of Krč in Dubrava, which delimited the territories of two Illyrian tribes – the Pituntines of Podstrana and the Nerastines of Jesenice – also passed through Pišćenica. Marked hiking trails from Gornja Podstrana and the Church of St George on Vršina lead to Pišćenica.
Vilanjski grad is a fort located in the middle of a rocky plateau located to the northeast of St Georg. It is about 10 metres tall and is surrounded by two dry stone walls, of which the lower is much larger and wider. The position of this fort and the orientation of its most massive parts points towards the conclusion that it could have functioned as a border between the pastures of Illyrian tribes – the Pituntines of Podstrana and the Nerastines of Jesenice, whose inter-tribal border passed through this area. Although no marked hiking trails lead to the fort, access is possible.
Obloženica is the largest prehistoric fort in Podstrana. Its shape is not circular, as is typical of ritual sites, but rectangular – which indicates that it was used for secular purposes, most likely as a shepherd’s residence. It is located at the foot of Perunić peak (448 m), under which a marked hiking trail passes.