Apollonia, the island’s beautiful capital, is built on three hills and is found in Sifnos hinterland. It took its name from the god Apollo, who was worshiped by the inhabitants of the island in antiquity, and there are a few who call it Stavri (cross) either due to the crossroad in the region that leads to all directions of the island or because of the Church of Cross in the heart of the village.
Characterized as traditional and protected settlement, a stroll through its famous and much-photographed "alley" (the central alley of the village leading to Katavati) is enough to enchant you with the beauty and glow of the characteristic, dazzling white Cycladic houses and buildings. Most of the shops, bars and restaurants of Apollonia are gathered in this “alley”.
At Iroon Square, the central square of the village, there is the Folklore Museum of Sifnos while at Rampaga Square you will find the bust of the local publisher, journalist and poet Kleanthis Traintafyllou. From the churches of Apollonia it is worth visiting the church of Agios Spyridon (metropolis), Panagia Oyranofora and the Church of Cross.