detail of the roof of historical house in alberobello, italy, europe.

facade wall home house wood architecture arch furniture property plant building architectural detail historical houses alberobello italy europe small town comune metropolitan city bari apulia southern famous trullo buildings stones round domed roof simplest embellished decorative pinnacles architect master trullaro trulli designated unesco world heritage site center district cultural capital itria valley unique self-supporting roofs form configuration europe buildings use peasants found configuration representing signature trullaro 1996 inhabited entire considered valley