Parola Tank Museum, officially Armoured Vehicle Museum displays various tanks, armoured vehicles and anti-tank guns used by the Finnish Defence Forces throughout its history. A rare exhibit is an armoured train used in World War Two. A few kilometers away from the museum is also the Armoured Brigade. The museum was opened June 18, 1961, when there were 19 tanks and 12 anti-tank guns on display. Also Leopard 2A4, the latest tank in the Finnish Defense Forces is displayed.
Reference: Wikipedia
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.