The Stoa of Attalos houses the Museum of the Ancient Agora. Julius Caesar began construction of the Roman agora in Athens, which was finished by Augustus. Ancient examples are the Greek agora and Roman forum. Hebe may have been the Acroterion on the Temple of Ares in the Athenian Agora. Pei's new plaza, modeled after the Greek Agora marketplace, opened in 1972. In 1937, Dow published a catalog of his archaeological discoveries in the Athenian agora. The Ancient Agora of Athens is the best-known example. The Ancient Agora of Athens was the best-known example. Other examples include Io, Lisaac and Agora. The Roman type of building has developed out of the Greek agora. One such stone was used to indicate the edge of the Athenian "agora". It is very likely the original purpose of grid layouts comes from the Athenian Agora. Adrianou (Hadrian Street) exists to this day, leading from the arch to the Ancient Agora. The new shekel is divided into 100 agora. After that there is the area of the Hellenistic agora.