(Greek δίπτερος; dípteros: two-winged; building equipped with double pterón = gallery or perambulatory). Technical term for a Greek temple with a frontage of at least eight columns, whose cella is enclosed on all sides by at least two, on the ends even three rows of columns; the term is only known from Vitruvius (3,1,10; 3,2,1; 3,2,7; 3,3,8; 7 praef. 15), but not elsewhere in Greek architectural terminology. In comparison with a peripteros with its simple set of columns, the dipteros ─ an expensive building concept with far greater requirements in…