Cales Coves is an emblematic and spectacular prehistoric necropolis, both for its setting and for the large number of tombs in it. They take the form of a set of cavities excavated from the rock walls of the ravines and coastal cliff faces (about 90 altogether), used by local communities to bury their dead. Several types of cave have been documented. The necropolis was used for about 1000 years, from the 11th century BCE up until the Romans took control.
In the Roman era, despite no longer being in use as a necropolis, a series of inscriptions on the cave walls testify to their use as a place of pilgrimage, as can be seen in the famous Cova deis Jurats. Calescoves was also a major anchorage port, especially between the 4th century B.C. and the 6th century A.D., with ships arriving from powerful trading nations along the Mediterranean coast.
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.