The Liebenstein Castle , now a ruin , is on a granite cone north of Plößberg. The hill fort was first mentioned in 1125. In 1292 the family who built the Liebenstein family died out and the castle was sold by Theodorich von Parsberg to the abbot Theoderich of the Waldsassen monastery in 1298 . Theodoric carried out extensive repairs , and the castle was given an outer wall under Abbot Franz Kübel . With the abolition of the monastery during the Reformation, the castle was sold to the Tirschenreuth citizen Anton Mehler and his descendants. After 1634, after it had previously been the seat of the judges' office, it was no longer inhabited and fell into disrepair.
On granite cone of Castle Hill were up in the 1950s several quarries, are also obtained immediately below the ruins themselves. Originaer few foundations of the keep , since the summer of 2007 parts are built up the walls again.
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.