Next is Temple D which is dated to 540 BC. The west face fronts directly onto the north-south street. The peristyle is 24 metres × 56 metres on a 6 × 13 column pattern (each 7.51 metres high). There is a pronaos in antis, an elongated naos, ending in an adyton. It is more standardised than Temple C (The columns are slightly inclined, more slender, and have "entasis", the portico is supported by a distyle pronaos in antis), but it retains some archaic features, such as variation in the length of the intercolumniation and the diameter of the columns, as well as in the number of flutes per column. As with Temple C, there are many circular and square cavities in the pavement of the peristyle and of the naos, whose function is unknown. Temple D was dedicated to Athena according to epigraphic evidence or perhaps to Aphrodite. The large external altar is not oriented to the temple's axis, but placed obliquely near the southwest corner, which suggested that an earlier temple occupied the same site on a different axis.