The feudal castle of Sancerre was one of the strongest castles of the Middle Ages built in France. It was the seat of Counts of Sancerre. The future king Charles VII and Joan of Arc stayed at the Chateau de Sancerre, which was strategically placed on the border of the "kingdom of Bourges."
The town of Sancerre was formerly fortified. It was built under the castle, closing access to the less steep slope of the mountain. The castle and city walls were demolished in 1621.
Today only the tower, foundations, cellars or parts of walls remains of castle. The location of the old castle is now occupied by a mansion (1874) of Louis XII and a private park, owned by the Company Marnier-Lapostolle.
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.