Ryazan's most famous site is probably the magnificent Dormition Cathedral. It was built between 1693 and 1699 by the architect Yakov Bukhvostov in the Naryshkin baroque style. In form it consists of a tall red brick structure decorated with carved white stone window frames and topped with five central domes.
Inside the cathedral has a towering iconostasis 27 metres in height which includes two miracle-working icons: the Our Lady of Murom Icon which dates from the 12th century and the Our Lady of Feodotievo which was discovered in the nearby village of Fedotievo in 1487. The cathedral is now the Summer Eparchial Cathedral of the Ryazan and Mikhailov Eparchy. It is only open in the summer.
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.