Biskops-Arnö was a palatial residence of the archbishop of Uppsala, built in the first half of the 1300s. After the Reformation it was left to decay and finally demolished in the early 1700's, when the present main building was erected. For nearly 200 years Biskops-Arnö was a seat of Colonel in the Royal Regiment.
In 1956 Biskops-Arnö moved to the foundation of the Association of the Nordic Institute, who placed there a Nordic education institute and a college. Biskops-Arnö is a great destination that offers both nature and culture. Make sure to visit the Gothic hall, a room with limestone player and grand pillars - a remnant of the old bishop's castle. Visiting groups can book a meal or coffee at Biskops-Arnö college who also have hostel during 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.