Boni (Bonis) Windmill is the centerpiece of the Agromuseum of Mykonos. It may not be as popular a tourist attraction as The Windmills (Kato Milli), but the well-maintained windmill is a testament to the island’s historic production and processing of agricultural products. Boni Windmill is open to visitors from 4pm to 8pm from June to September. If you can, try to attend the Wine Harvest Festival (Grape Harvest Fest) that is held at this famous landmark annually.