Kosikia, belonging to the community of Evdilos, is the highest of the Messaria villages. Its name derives from the word "kosifikia" dwellings of the Kosifikia as it was situated at a very high altitude. Today it has about 100 inhabitants. This quaint village with its houses spread over the mountainside, its gardens and cultivated fields, domesticated animals, and its big church and numerous chapels, preserves the style and character of Ikaria's older settlements. Higher up on the mountain of Koskinas stands the Byzantine Castle of Koskinas, an unerring witness of the history of this sacred land. In and around the area of Kosikia are located many of the island's best vineyards.