Siros, on the other hand, is the modern administrative, commercial, and cultural centre of the Cyclades. The Hora, full of fine neoclassical buildings, old mansions, marble squares and magnificent churches, is built amphitheatrically up the hillsides around the port. The hills and the valleys produce quick changes in the scenery, alternating between cultivated fields, orchards, and brush. Beautiful locations and scenic beaches sum up the island.