Alberobello looks like a picture from a fairytale. The historical center has a great concentration of "trulli" and has been declared an international monument. Trulli are beehive-shaped houses that were built in the 13th century. Their whitewashed limestone walls and conical fieldstone roofs utilize the materials in such a way that mortar isn't needed to keep the pieces together. Here you will see people making ceramics according to the way it used to be done some 500 years ago.