Due to the island’s position, below the strait of Cavo D’Oro, the northern winds afflict it throughout the year. This is what led the residents to build grinding windmills in the style of the Mediterranean towermill with a three-storey stone cylindrical body and a conical roof made of grass onto a wooden frame. The residents say that in the past there were 28 windmills on the ridge above and south of Chora, and 2 more in Kato Meria. The windmills of Ioulis are said to be 20 in total and they constituted the biggest windmill complex in the Cyclades. After World War II half of the buildings’ section was demolished and they were used as warehouses.