Lillö Castle was built in in the 14th century among the natural defences offered by the inaccessible marshlands and the River Helge å. The first known owner was Åke Axelsson (Tott) in 1343. The castle belonged to Tott, Trolle and Huitfeldt families until it was destroyed in 1658–59. Today, displays inside the castle based on the finds made during various archaeological digs reflect life here in days gone by. Display panels in the courtyard provide information on the castle and its surroundings. A key is available from the Naturum Vattenriket visitor centre to gain admission to the castle.
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.