The Chora of Serifos island is built on the top of a steep rock and it is distinguished in Ano (upper) and Kato (lower) Chora. The first one is a typical Cycladic palisade settlement, whereas the second is an intricate complex with alleys, houses and yards. Many churches are sparse inside the settlement. Public spaces are very restricted due to dense building.
On the top of Ano Chora there is the medieval castle. The habitation of the area has been continuous since ancient times.