Schwerin Cathedral was formerly a Roman Catholic cathedral, dedicated to the Virgin Mary and Saint John. It was built in Schwerin following the move here of the seat of the Bishopric of the Abodrites, established by Henry the Lion, from the old city of Mecklenburg in the late 12th century. The first cathedral was built of timber. The foundation stone of the stone cathedral of the Prince-Bishopric of Schwerin was laid in 1172. After a construction period of 76 years, it was consecrated in 1248. The proto-cathedral is now the church of the Bishop of the Evangelical Lutheran State Church of Mecklenburg.
In 1222 Count Henry of Schwerin returned from a crusade with a reliquary of the Holy Blood, an alleged drop of Christ's blood contained in a jewel. This was placed in the cathedral, and caused it to become a place of pilgrimage. During the 14th century the nave and transept were completed, as well as the chapter buildings. At the end of the 15th century the cloister on the north side was finished.
The tower, 117.5 metres high, was constructed between 1889 and 1893.
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.