La chabola de la Hechicera (Sorginaren Txabola, 'The Witch's Hut') is a dolmen group located in Elvillar. Three large vertical stones support a large horizontal flat stone. Nine large stones form a chamber in a polygonal shape. The corridor is made of five stones, and is divided into two. The site was probably a funerary construction to hold the remains of the people in the settlement.
It was discovered in 1935 by Álvaro de Gortázar in a fair state of preservation. Jose Miguel Barandiaran explored it partially in 1936, finding two stone percutors, a polished axe of ophite, fragments of pottery and human remains. The stone lying on top was found broken into three parts, but it was restored and replaced in its original position. The findings are preserved in a museum in nearby Laguardia, Álava.
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.