This is another view of the Wikala of Sultan Qansuh al-Ghuri located in Cairo. The alteration of colors in other areas than the archways (and hence not ablaq) is more clear in this one. Some alteration is visible in the closest archway, but I’m sure that it’s regular enough to be seen as intentional alteration (and therefore ablaq). More constant alteration is particularly clear in the columns, where the different stone types reveal that most columns are actually stacked layers, rather than a solid whole.
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