The Memorial to the Murdered Jews of Europe, also known as the Holocaust Memorial is dedicated to the Jewish victims of the Holocaust, designed by architect Peter Eisenman and engineer Buro Happold. It consists of a 19,000 m2 site covered with 2,711 concrete slabs arranged in a grid pattern on a sloping field. They are organized in rows, 54 of them going north-south, and 87 heading east-west at right angles but set slightly askew. An attached underground 'Place of Information' holds the names of all known Jewish Holocaust victims, obtained from the Israeli museum Yad Vashem.
Building began on April 1, 2003 and was finished on December 15, 2004. It was inaugurated on May 10, 2005, sixty years after the end of World War II, and opened to the public two days later.
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.