Angenstein castle was founded in the middle of the 13th century by the for a strategic outpost between Basel and the Jura area. It was owned by the Counts of Pfirt, but half of it was apparently ceded in 1271 to the Bishop of Basel.
After 1557 the castle was destroyed by fires (1494 and 1517) and turned into a residence. The four-storey residential tower was built, which still characterize the appearance of Angenstein. The chapel was built in 1562 with new residential and commercial buildings. Its most important jewelery were three splendid glass windows, donated by the Bishop.
Thirty Years' War, fires and the poor conditions of the changing owners led to an increasing neglect. At the beginning of the 19th century numerous changes were made. In 1951, the city of Basel bought the Angenstein. In 1984 the castle was burned for the last time. From 1988 to 1991 it was completely renovated.
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.