[cliccare il link per andare alla versione in italiano] ready to be served "La città dei Sassi" (the city of the stones): this definition in crossword puzzles taught me what is the defining feature of Matera, a city in southern Italy. What are the Sassi? The Sassi district is the ancient heart of the city of Matera. The Sassi... constitute a city unto itself, completely carved out of the face of the calcareous rock - what is known as tufa stone. The Sassi district is a system made of dwellings carved out of the steep slopes of a deep valley with... Read more →