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Picture Books The Athenian Agora Picture Book series, started in 1951, aims to make information about life in the ancient commercial and political center of Athens available to a wide audience. Each booklet ... Google Books | English PDF | Buy Online | Search for Items Inside Waterworks in the Athenian Agora Author: Lang, M.Publication Date: 1968ISBN: 0876616112Picture Book: 11 Preserved beneath the surface of the Agora are thousands of terracotta pipes, stone drainage channels, and lead pressure lines. These form a complex chain of waterworks, constructed and repaired over many different periods.