“Castro”, named by the medieval Castle of 12-13th century, built on top of the hill and Chorio, a traditional village full of stone-made white coloured restored 400 year old houses. The majestic Cycladic Architecture at its best!
Nearly all of the island’s area is covered by terraces once used for extensive agriculture-especially vineyards. Dry stone construction is best known in the context of stone walls, traditionally used for the boundaries of fields and churchyards, or as retaining walls for terracing, but dry stone sculptures, buildings, bridges, and other structures also exist. Currently, only a few of these terraces are used but all of them have been declared UNESCO World Heritage Sites since 2018.
Several ancient ruins rest on the island, some remains of the ancient city situated upon a lofty and rugged mountain.
In the countryside, there are as many as 64 private churches, of which the oldest and most important one is Piskopi (Episkopi), which merits particular attention. Six of the other churches have murals dating from 1270-1350, which means that Sikinos is second only to Naxos when it comes to medieval – byzantine churches decorated with beautiful frescoes.