Franchimont Castle sits at the western end of a small hill overlooking the village of Franchimont. It is thought to have originally been built in the 11th century, as a stronghold of the Principality of Liège. The original building was extended several times during the Middle Ages, once after a fire in 1387.
In 1487 the castle was besieged, and around the same period the La Marck family took ownership of it. In the early 16th century the outer wall was built, with casemates and an artillery tower added.
Today the castle is owned by the town of Theux and is open to the public. The artillery tower at the north-east corner contains a small exhibition and the ticket office.
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.