Freudenstein castle is situated outside the boundaries of the Jáchymov on a hill above the northwest edge of the town. Built by Stephan Schlick between 1516-1517 it was used for protection. Reportedly, illegal minting of the first Jáchymov thalers started in its cellars in 1519. In 1547, the castle became royal property and was used as the seat of the Royal Inspectors of the Mines. During siege by the Swedish army In 1634, the castle was considerably damaged by artillery and burnt down. Afterwards it wasn't cared for and it withered away. The masonry of the defensive walls has been worn down and used as building material.Only two towers were upstanding. A larger tower in the northwest corner, called Šlik (Schlick) tower, still exists in its full height of 19 m. In the southwest corner, there is a lower cylindrical tower called the Prachárna (powder store), 12 meters high. In the 18th and 19th centuries, the tower was used to store gunpowder for mining purposes.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.