The city of Omiš lies on the site where the river Cetina flows into the sea. The significant strategic position initiated the building of a settlement as early as Antiquity. The Roman Oneum was not endowed with an urban status but many inscriptions, fragments of architectonic decoration and statues have been preserved. In the Middle Ages the pirates from Omiš posed a great threat to navigation, especially to Venetian ships. Up to the end of the 13th century, it was ruled by noblemen from the Kacic family after whom it was inherited by the Šubic family. From the middle of the 14th century, Omiš recognized the authority of the Hungarian-Croatian king Louis I, afterwards the rule of Bosnian nobles, and from the middle of the 15th century it belonged to the Venetian Republic up to its demise in 1797. In the 10th century, on the right bank of the river in Priko the pre-Romanesque church of St. Peter was built which has been preserved in its entirety. The church has one nave and its interior is divided into three spaces. In the interior the apse is semi-circular while on the outside it is rectangular. Over the middle space rises a smaller cupola. The outside church walls are broken down with lesenas while inside the same thing is achieved with niches. It was probably built in two phases. A Benedictine monastery might have stood alongside the building while in the middle of the 18th century a Glagolithic seminary was established nearby the church. The church of St. Peter is one of the most significant Croatian monuments of pre-Romanesque architecture. The urban structure of Omiš itself derives from the Middle Ages. The walls from this period were pulled down in the 19th century excepting a small part on the southern side and the Peovica (Mirabela) tower above the city on the Babnjaca hillside. Heavily damaged by lightning in 1797 it has been thoroughly restored. Without doubt, Peovica is the most typical preserved Romanesque fortification in Dalmatia (13th century). Over the city can be found the dilapidated remnants ofthe Medieval fortress Starigrad which was renovated in the 16th and the 17th century. The Franciscan monastery was built in the 18th century. In the 19th century, a well-proportioned square was formed along the riverbanks on the site of the onetime western city gates. Its northern side is closed by the palace of the Caralipeo-Despotovic family. On the riverbank is also the house of the Radman family which holds a significant private collection of stone fragments from Antiquity to the Renaissance as well as numerous objects and works of art from the 18th and the 19th century. Alongside the eastern city gate is the City Museum with a valuable collection of cultural-historical and ethnographic objects from the city itself as well as from the whole Poljica area. Every summer the Festival of Dalmatian Group Singing is held in Omiš. Upriver along the Cetina are the mills of the Radman family encircled with enormous plane-trees and a fishery. Today this is a well-known and popular resort destination for the area of middle Dalmatia.