Alberobello is a small town and comune in the province of Bari, in Puglia, Italy. It has about 11,000 inhabitants and is famous for its unique trulli constructions. The Trulli of Alberobello are part of the UNESCO World Heritage sites list since 1996.
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A trullo (plural, trulli) is a traditional Apulian dry stone hut with a conical roof. Their style of construction is specific to the Itria Valley, in the Murge area of the Italian region of Apulia. Trulli were generally constructed as temporary field shelters and storehouses or as permanent dwellings by small proprietors or agricultural labourers. Their golden age was the 19th century.
Dry stone is a building method by which structures are constructed from stones without any mortar to bind them together. Dry stone structures are stable because of their unique construction method, which is characterized by the presence of a load-bearing façade of carefully selected interlocking stones. Dry stone technology is best known in the context of wall construction, but dry stone artwork, buildings, bridges, and other structures also exist.