The Byzantine and Christian Museum was founded in 1914, and houses more than 25,000 exhibits with rare collections of pictures, scriptures, frescoes, pottery, fabrics, manuscripts, and copies of artifacts from the 3rd century AD to the late medieval era. It is one of the most important museums in the world in Byzantine Art. In June 2004, in time for its 90th anniversary and the 2004 Athens Olympics, the museum reopened to the public after an extensive renovation and the addition of another wing.
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.