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 ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.