The definitive publication of the Temple of Apollo at Bassai, in the northwest Peloponnese, this is one of four volumes representing the culmination of years of study by Professor Fred Cooper of the University of Minnesota and other scholars throughout the world. An identifiable work of Iktinos, the architect of the Parthenon, the building exhibits numerous unusual and uncanonical features that heralded a revolution in Greek architectural design. Volume I presents the history of the site and its cult, followed by a brief account of the Archaic remains and a geological report. The author then analyzes the structure of the temple from the foundations to the akroteria. The chapter on the marble roof is contributed by Nancy J. Kelly. Testimonia are cited in appendixes.