Leuchtenburg Castle (Castelchiaro) above Lake Caldaro towers into the sky in the surroundings of Castel Varco in the locality of Vadena. The castle was probably constructed in 1250 by the Lords of Rottenburg. The castle complex has been protected by a circular wall which protected the castle complex from assaults. Due to the fact that the position of the castle is not really well-protected it has presumably been constructed in order to impress.
Numerous castles of the Rottenburg leadership have been razed after the conflicts with Frederick IV, Duke of Austria, in 1410, but not Leuchtenburg, which was handed over to the sovereigns and in the following years was lent to officials of Caldaro. After 1610 Leuchtenburg remained uninhabited and started decaying.
Only in the 20th century the walls of the ruins were conserved. Leuchtenburg consists of a circular wall inside which there were several residential buildings. However, today these buildings could only be preserved to some extend. However, there are also well-preserved rests of the great hall with frescos dating back to the 15th century.
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.