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 Amphitheatre of the Three Gauls was part of the federal sanctuary of the three Gauls dedicated to the cult of Rome and Augustus celebrated by the 60 Gallic tribes when they gathered at Lugdunum (Lyon). The amphitheatre was built at the foot of the La Croix-Rousse hill at what was then the confluence of the Rhône and Saône.
Excavations have revealed a basement of three elliptical walls linked by cross-walls and a channel surrounding the oval central arena. The arena was slightly sloped, with the building"s south part supported by a now-vanished vault. The arena"s dimensions are 67,6m by 42m. This phase of the amphitheatre housed games which accompanied the imperial cult, with its low capacity (1,800 seats) being enough for delegations from the 60 Gallic tribes.
The amphitheatre was expanded at the start of the 2nd century. Two galleries were added around the old amphitheatre, raising its width from 25 metres to 105 metres and its capacity to about 20,000 seats. In so doing it made it a building open to the whole population of Lugdunum and its environs.