Laubenbergerstein is a hilltop castle, likely established in the 12th century by the Bishops of Augsburg, aimed to safeguard the crucial Iller River crossing and associated customs station. Initially occupied by the Laubenberg family, the castle experienced conflicts, including attacks in 1449 by Graf Hugo XIII. von Montfort. Kaspar von Laubenberg initiated substantial expansions after 1450, resulting in the dominant artillery keep. During the German Peasants' War in 1525, the castle was seized and weapons were stolen.
In 1559, the Laubenberg family left the castle for a newly built residence in Rauhenzell. By 1629, the castle was already considered a partial ruin. Margaretha von Laubenberg accelerated its decay in 1641, selling roofing tiles. In 1647, the fief was revoked, and by 1806, the castle came under Bavarian rule. In 1977, the Immenstadt Heritage Association acquired the ruins and began restoration efforts. The castle, made of local materials, is now accessible to visitors. The imposing artillery tower, constructed after 1450, dominates the castle's appearance and can be climbed on special occasions.
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.