Kortenberg Abbey was a Benedictine nunnery. The foundation, dating from before 1105 and traditionally dated 1095, was confirmed by Odo of Tournai in 1110.
The abbey was an important location in the constitutional history of the Duchy of Brabant, as it was where the Charter of Kortenberg was confirmed and where the council met that was instituted to oversee the charter's implementation.
Kortenberg was suppressed in 1798. It is now a diocesan retreat centre.
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.