Once an island in the river Iller, Burghalde hill is one of the oldest settlements of Kempten, first a late-Roman castellum, in the Middle Ages the fort of the monastery’s abbots. In 1488 the tower was added and the whole structure was incorporated into the city’s fortifications. Dismantled in 1705; open-air stage since 1950. Since 2004 home to the Allgäu Castle Museum.References:
The Odeon of Herodes Atticus is a stone theatre structure located on the southwest slope of the Acropolis of Athens. It was built in 161 AD by the Athenian magnate Herodes Atticus in memory of his wife, Aspasia Annia Regilla. It was originally a steep-sloped theater with a three-story stone front wall and a wooden roof made of expensive cedar of Lebanon timber. It was used as a venue for music concerts with a capacity of 5,000. It lasted intact until it was destroyed and left in ruins by the Heruli in 267 AD.
The audience stands and the orchestra (stage) were restored using Pentelic marble in the 1950s. Since then it has been the main venue of the Athens Festival, which runs from May through October each year, featuring a variety of acclaimed Greek as well as International performances.