The ancient temple of Kavirio on Lemnos is situated 3 kilometers from the archaeological site of Ifestia, just opposite to Tigani Bay. It is an ancient sanctuary dedicated to the two gods Kaviri, mythical gods of northern Aegean with mystic ceremonies.
The sanctuary of Kavirio, which was assumed to have been built around the 6th or 7th century BC, is older than the one in Samothraki, where this particular god was also worshiped. There is also a belief that Kaviri were sons of god Hephaestus. They were thought to be talented technicians and they were worshiped as gods of the sea, the vineyards, and fertility. Kaviria Mysteries were celebrated every year and they were associated with the revival of nature.
The site of Kavirio was brought to light in 1937. The excavations can be seen separated by a trench. There was a telestirio or else initiation hall, a palace and an arcade on one side. On the other side, there is a larger telestirio with twelve Doric columns. The sanctuary contained many inscriptions that gave information about its construction and the history of the island.
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.