The Ducal Palace of Béjar was built after 1203 by Alfonso VIII. Although these already very reduced in the XIXth century, they still conserve some square and round towers and part of their perimeter bordering the oblong hill on which the old part is based. Béjar was a royal place, but with Enrique III, in 1396, it passed to the lordship of Diego López de Zúñiga or Estúñiga, whose successors will hold the title of dukes of that place, granted by the Catholic Monarchs.
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.