The remains of the modest, derelict church of St Marco are located on a protruding headland, near the village Risika. According to stylistic characteristics and the manner of construction, the church belongs to Romanesque sacral buildings and can be dated into the 12th – 13th century. Just like similar Romanesque buildings, it is characterized by a small monovolume body with an apse protruding to the east side. The walls constructed of regular dressed stone are preserved almost to the roof and the apse half-dome is only partially preserved. Accidental findings of graves around the church and in its immediate vicinity indicate that the area was inhabited in the Roman times. The comfortable cove certainly offered favourable conditions for the emergence of the farm building in the Roman times. Even today there are a few marble pieces recycled from a nearby luxurious building in the walls of the church.