The sonic reach of the call to prayer (Athan), broadcast from the holy mosque of Makkah, amplifies the palpable parameters of the city’s boundaries and pronounces its sacredness. Bringing together years of work, Basmah Kaki and Hussam Dakkak of Studio Bound, consider the various lines that intersect and define the city, in a moment when it is undergoing major transformations that are putting tension on Makkah’s urban fabric.