Matera is one of these 'cities' that will always stay on your mind once you have visited. The main reason is probably the fact that the old part 'the Sassi' is just like it always has been and even if there are some small changes made through the ages it is very authentic. The Sassi has plenty of streets that are made of stairs - remember when booking a hotel or B&B - and all stones used to build the streets are carved from chalk... this means slippery at night and in the morning... Unesco World Heritage