Alberobello, in the region of Puglia in Southern Italy, is a strange and picturesque destination, which is becoming an important fixture on travel itineraries, as well as independent travelers. The small town has been included in the UNESCO world heritage site. Looking like igloos, constructed out of pure stone, the beehive-shape structures, have origins that dates back to the 15th century and maybe older. You can not find trulli nowhere else in the world When the Emperor Frederick II built this castle near Bari in the 13th century, he imbued it with symbolic significance, as reflected in the location, the mathematical and astronomical precision of the layout and the perfectly regular shape. A piece of medieval military architecture, the Islamic and the European Cistercian Gothic.