 Adams has also challenged the idea that the arch was on the line of the Themistocleian wall, and this position has now been generally accepted.A gate of the Themistocleian wall has been excavated c. 140m east of the arch, which has settled the question.Stuart and Revett, who did the earliest and only complete architectural study of the arch in 1751-53 CE, were perplexed by the fact that the arch is not aligned with the Temple of Olympian Zeus, despite the fact that it is only c. 20m from the "peribolos" wall (boundary wall) of that complex.