Valdštejn Castle (Waldstein) is an early Gothic fortress near Turnov, in the Czech Republic. The city was built on three sandstone cliffs in the second half of the thirteenth century by Counts of the Waldstein family. After 1420 the castle was occupied by the Hussites, then later by robber barons. In 1621 the abandoned castle was bought back by the Waldsteins, whose most illustrious member was Albrecht von Wallenstein. During the peak of the Baroque period, they built a pilgrimage church, dedicated to John of Nepomuk, in 1722 on the ruins of the castle.
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.