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.
It have been described by Fodor's as one of the most unique landscapes in Europe. Along with the park of the Rupestrian Churches, it was named a World Heritage Site by UNESCO in 1993.
The Sassi originate from a prehistoric troglodyte settlement and are suspected to be among the first human settlements in Italy. There is evidence that people were living here as early as the year 7000 BC.
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 the Gravina river. The ravine is known locally as 'la Gravina'.
In the 1950s, the government of Italy forcefully relocated most of the population of the Sassi to areas of the developing modern city. Beset by extreme poverty and riddled with malaria, the unhealthy living conditions were considered inhuman and an affront to the modern new Italian Republic of Alcide De Gasperi. However, people continued to live in the Sassi.
Until the late 1980s this was considered an area of poverty, since many of these houses were, and in some cases still are, uninhabitable. The current local administration, however, has become more tourism-oriented, and it has promoted the regeneration of the Sassi with the aid of the European Union, the government, and UNESCO.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.