Cappadocia is one of those rare regions in the world where the works of man blend unobtrusively into the natural surroundings. Dwellings have been hewn from the rock as far back as 4,000 B.C. During Byzantine times chapels and monasteries were hollowed out of the rock, their ochre-toned frescoes reflecting the hues of the surrounding landscape. Even today troglodyte dwellings in rock cones and village houses of volcanic tufa merge harmoniously into the landscape. The area is covered by wonderful valleys where the weather has eroded the stone into peaks, cones and obelisks called fairy chimneys.