Burg Dreckberg, likely built between 1347 and 1357 by Paderborn Cathedral Provost Otto von Bentheim, served as a fief for the Lords of Drewer. The bishops of Paderborn constructed it for territorial security against the Electorate of Cologne and the Hellweg route. First mentioned in 1386, the castle withstood the Soest Feud in 1444. Changing hands multiple times, it underwent renovations in the 18th century, acquiring its current baroque appearance. Acquired by the city of Salzkotten in 2000 and later sold to Erhard Christiani in 2002, he utilized it until his death in March 2017.
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.