Zvornik is a medieval castle located in Zvornik, Bosnia and Herzegovina, on the mountain Mlađevac overlooking Drina Valley.
The medieval town of Zvornik called 'Đurđevgrad' or 'Kula Grad' was first mentioned as a property of Bosnian medieval feudal family Zlatonosović in 1410 when Hungarian King Sigismund was in the area. It was probably built in the 12th or 13th century and is one of the largest medieval fortresses in Bosnia and Herzegovina.
Part of the structure was destroyed in 1878 during the Austro-Hungarian invasion of Bosnia and Herzegovina.
Ustasha troops of the fascist Independent State of Croatia occupied the fortress along with the rest of Zvornik and most of Bosnia, in April 1941. The fortress was liberated in July 1943 by the 1st Proletarian Brigade during the Battle of Zvornik.
Beginning on 8 April 1992, about 300 soldiers of the Army of the Republic of Bosnia and Herzegovina defended the fortress from Serb soldiers of the Yugoslav People's Army during the first stages of the Bosnian War. Following the Bosnian War, Zvornik became a part of Republika Srpska and the new Serb government had a church built on the grounds of the fortress and relocated a church bell from the village of Divič to the new church to mark their victory over Bosniaks.
In May 2013, the remains of several war victims from the 1990s conflict were uncovered in Kula grad.
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.