During this period, architecture expanded and peaked with regard to the conceptualisation of artistic perspe-
ctive in all of its structural mass. The Temples of Zeus in Olympia, the Treasure of the Athenians in Delphi as well as many temples in southern Italy are built in the Doric style. In Athens, the Parthenon was built by Iktinos under the supervision of Pheidias with the assistance of Callicrates; the Propylaia by Mnisiklis; the Temple of Athena Nike by Callicrates and the Erechtheium by Phi-
lokleis -- not to mention the Doric temple of Iphaistos in Thission, the Temple of Poseidon in Sounion, the Temple of Apollo in Figalaia and the Temple of Hera in Argos. Stone theaters were built (Epidavros), city planning evolved and the tomb of Mavsolos in
