The first documented record of Hohenurach Castle dates from 1235, but it was probably built in the 11th century by the Counts of Urach. Count Ludwig I of Württemberg updated the castle in 1427, building a new castle on the existing foundations. Following heavy damage in 1547 during the Schmalkaldic War, Duke Christoph of Württemberg had the castle rebuilt in 1551. From the 16th century onwards, the castle complex also served as a state jail, whose inmates included the Tübingen Professor Nicodemus Frischlin (1547-1590).
As a military facility Hohenurach Fortress also posed a constant threat to the citizens of the nearby town. It wasn't until 1765, however, that Duke Carl Eugen of Württemberg decided to move his soldiers to the town and had Hohenurach Fortress torn down. All that remains of the castle site is a towering ruin – one of the biggest, mightiest and most important ruins in southern Germany.
The castle ruins are free to explore, but can only be accessed on foot.
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.