The ruins of the Revište Castle near Hliník nad Hronom stand on top of steep rock about 100 m above the floodplain of the river Hron. There is a wonderful meadow below the castle used by canoeist as a camping site.
The castle was built in the 13th century as part of protection to central Slovakian mining towns and the trade route running along the Hron. Renaissance fortifications were added to the older Gothic part of the Castle. Mercenaries of the rebellious magnate Imrich Thököly conquered the castle and converted it in ruins in 1678. Only some Castle walls survive.
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.