Engelstein Castle was first mentioned in 1417 but it is probably much older. It is probable that at first it was a simple watch tower, guarding a nearby road crossing, which was upgraded to a water castle after the destruction of Hadmarstein Castle on the nearby Johannisberg mountain at the end of the 13th century. It was situated on a granite cliff surrounded on 3 sides by small lakes.
In 1531 the castle went to Benedikt Schaul who started to transform the still medieval fortress into a Renaissance castle. The Barons of Windhag continued this elaborate reconstruction and gave the castle its present outlook. The costs however were so enormous that the barons were soon heavily indebted after which the castle was confiscated at the end of the 16th century.
In 1619 Engelstein Castle was stormed by Imperial troops and plundered. In 1681 it was bought by Adam Anton Graf Gundemann, whose descendants owned the castle for the next 150 years. Then it went to the Barons of Geusau who owned it until 1916.
Several other owners followed until it was acquired by the industrialist Erich Meinl in 1964. By then the castle was in a bad state due to being plundered and neglected during and after World War II. Now the bailey is inhabited by a descendant of Meinl.
At present Engelstein Castle is privately inhabited and can thus not be visited.
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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.