The east wing, built partly of large, carefully dressed limestone blocks of the type used in Sanctuary I, remains something of a riddle. Its walls join up with the North Hall and the South Stoa, but the alignment is slightly oblique. The interior of the east wing is divided into several rectangular rooms whose purpose cannot be determined any more, as they were completely laid bare already in 1888. In its centre a 5.50-m-wide passage, which may have been vaulted, gives access to the court from the east.