There is no sign in the temples of any observation of anything external to the temples themselves, unless of the heavenly bodies; and no features of the surrounding country, such as prominent mountain-peaks or great isolated rocks, of which there are many striking instances near the temples, have had any regard at all paid to them. The outer walls, with the exception of the decoration towards the solstices, are featureless and blank, and the doorways, where one might expect ornament, are extremely narrow and entirely plain. When one is within the great temple one realises how fitting a place it is in which to observe the starry sky, for the high walls around exclude all view of the landscape, and the only objects which attract one’s attention are the heavenly bodies above one; and at night-time one feels how easily the thoughts of a star-worshipper could be concentrated on their proper object. It is incredible that such a style of architecture as we have described, and such a civilisation as it signifies, could have originated and developed in South Africa, for such a development would have required a very long time, and would have implied at least a long and peaceful settlement in the country; and although the builders of Zimbabwe may have long possessed the place, yet it is apparent that they never considered the country was their own. This is clear from the nature of their defences and the strength of their fortifications. Had they lived long enough in the land to alter or develop any of their arts independently of their mother country, they would have left a deeper mark on their surroundings than they have; besides, living as they must have lived, they could not have increased in civilisation, nor developed any of its arts, and we may assume that they had their architecture as well as their religion in common with their mother country. The balance of probabilities seems to be in favour of that country being South Arabia; and when it and Abyssinia, with which it was so long associated, are better known, we may find temples which are built of similar small stones and with similar mathematical and other peculiarities in their construction. Our information of these countries is meagre, but some of those buildings which are known in Yemen, which seem to combine temple and fortress in one, as on Zimbabwe Hill, may have been built by the same race that constructed Zimbabwe; and the elliptic temples at Marib and Sirwah, and the one at Nakab al Hajar, with its north and south doorways seeming to indicate an observation of the meridian, may embody some of the mathematical principles illustrated by the ruins of Mashonaland. When the original builders of Zimbabwe have been traced to their home, it will remain to discover who were their successors in Mashonaland that rebuilt the western wall of the great temple and some portions of other buildings, for this certainly was not done by any of the present negro races.