The military Fort Venini in Oga was erected in the defense of the main alpine passes of the Alta Valtellina, and was built between 1908 and 1914 in the village of Dossaccio. The fort’s structure is decidedly massive and includes four armoured domes in steel where there were the cannons, that thanks to the particular orientation east-west, could rotate and defend all the valleys and the passes potentially subject to danger from the enemy.
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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.