Protected areas located within the boundaries: the chapel of St. Nicholas the Cetina River, the river to the new bridge, uluc Fošal coast to the town pier, to the walls Trijun including the town cemetery and rampart, spine Peov hills, north side of the fortress Peovica to Sv. Nicholas on the river Cetina. This walled part of Omis is a medieval part of the city, which was surrounded by city walls of the fortress which is the highest Peovica final part, and dates from the 13th century. Buildings of this part of Omis were raised from 16 to 19 century and Renaissance styles include folk architecture from the 19th to century.

The very role of the fortress Peovica or Mirabella is a reconnaissance. With Mirabelle Fort overlooks the whole of the old city, Punta Display Duca, but also on the whole Brac channel. It was the then local residents provide exceptional protection from the enemy, and we all know how strong they were Omis pirates. The very environment fortress and the entire city and the space is nicely decorated. The castle consists of four floors and exit to the top with a beautiful view.