Alberobello (Italian: [ˌalberoˈbɛllo]; literally "beautiful tree" is a small town of the Metropolitan City of Bari, Apulia, southern Italy. It has 10 735 inhabitants and is famous for its unique trullo buildings. The trulli of Alberobello have been designated as a UNESCO World Heritage site since 1996 . 

The history of these very particular buildings is linked to the Prammatica De Baronibus, an edict of the 15th-century Kingdom of Naples that subjected every new urban settlement to a tribute. The Counts of Conversano D'Acquaviva D'Aragona from 1481, owners of the territory on which Alberobello stands today with the summer "domus" that was called Difesa De Le Noci on the border with the territory of the duchy of Martina Franca, then imposed on the peasants sent in these lands they built their dwellings dry, without using mortar, so that they could be configured as precarious buildings, easily demolished.

Therefore, having to use only stones, the peasants found in the round form with self-supporting domed roof, composed of overlapping stone circles, the simplest and most solid configuration. The domed roofs or half cone for straw called the false dome of the trulli are embellished with decorative pinnacles that represented as many say the pinnacle was the signature of the master trullaro who did it or that restored and represented the pose of the pinnacle an exciting moment, the whose form is inspired by profane symbolic, mystical and religious elements that appear above all in the Fascist period.

The Sassi di Matera are two districts (Sasso Caveoso and Sasso Barisano) of the Italian city of Matera, Basilicata, well-known for their ancient cave dwellings inhabited since the Paleolithic period.

The "Sassi" have been described by Fodor's as "one of the most unique landscapes in Europe".[1] Along with the park of the Rupestrian Churches, it was awarded World Heritage Site status by UNESCO since 1993. The Sassi are houses dug into the calcarenitic rock itself, which is characteristic of Basilicata and Apulia, locally called "tufo" although it is not volcanic tuff or tufa. The streets in some parts of the Sassi often run on top of other houses. The ancient town grew up on one slope of the ravine created by a river that is now a small stream. The ravine is known locally as "la Gravina".

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