The rocks making up the floor of the Aegean are mainly limestone, though often greatly altered by volcanic activity that has convulsed the region in relatively recent geologic times. Of particular interest are the richly colored sediments in the region of the islands of Santorini and Milos, in the south Aegean. Notable cities on the Aegean coastline include Athens, Thessaloniki, Volos, Kavala, and Heraklion in Greece, and İzmir and Bodrum in Turkey.
The rocks making up the floor of the Aegean are mainly limestone though often greatly altered by volcanic activity that has convulsed the region in relatively recent geologic times Of particular interest are the richly colored sediments in the region of the islands of Santorini and Milos in the south Aegean Notable cities on the Aegean coastline include Athens Thessaloniki Volos Kavala and Heraklion in Greece and İzmir and Bodrum in Turkey