While Interviewing Cherie Blair last week, I looked out the window and saw this
Matera is a town built into caves using negative architecture and one of the oldest and continuously inhabited human settlements in the world. It was named a UNESCO World Heritage Site because of its underground cistern and water collection system. The main cistern has a water capacity of five million liters and took over 200 years to dig/carve out of the rock!
Old stuff, since 495 B.C.