Riga Old Town (Vecrīga) is the historical center of Riga, Latvia, located on the east side of Daugava River. Vecrīga is famous for its old churches and cathedrals, such as Riga Cathedral and St. Peter's church.
Vecrīga is the original area of Riga and consists of the historic city limits before the city was greatly expanded over the years. In the old days, Vecrīga was protected by a surrounding wall except the side adjacent to the Daugava river bank. When the wall was torn down, the waters from Daugava filled the space creating Riga City Canal.
In the 1980s Vecrīga's streets were closed to traffic and only area residents and local delivery vehicles are allowed within Vecrīga's limits with special permits. Vecrīga is part of a UNESCO World Heritage Site listed as "Historic Centre of Riga".
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.