The Gothic town hall of Arras and its belfry were constructed between 1463 and 1554 and had to be rebuilt in a slightly less grandiose style after World War I. The belfry is 75 meters high and used to serve as a watchtower. Nowadays tourists can enjoy ascending the belfry.
The belfry of the town hall is part of the UNESCO World Heritage site of The Belfries of Belgium and France (the group of 56 historical buildings).
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.