Kurzętnik Castle was built by Teutonic Knights in the 14th century. The construction began around 1331 and was completed before 1361. The large castle was 110m long and 42m wide. The first floors were built of granite and upper were brick-made. There was a chapel church in the inner yard. The suffered damages in wars between Teutonic Order and Poland-Lithuanian Commonwealth in 1410s and again in 1659 in Swedish army attack. In the 19th century the existing castle was demolished. Today some outer walls and foundations exist.
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.