Five times a day in the 83 square mile city of Cairo, over 30,000 muezzins call out the adhan, or call to prayer, calling believers to come and to pray. This ‘Asr (afternoon) adhan was recorded at the top of the Cairo Tower – the tallest point in Egypt at 187 m (614 ft) - in the neighbourhood of Zamalek. The recording captures the voices of the muezzins of Cairo as they echo below, all of whose calls begin a few seconds apart from one another. The muezzins calling from far away mosques and mosques closest to location can be heard: please control the volume accordingly.Audio recordings from 10 locations in Cairo representing the city-wide call to prayer (over 30,000 muezzins reciting each of the 5 times per day) as heard from each area/neighbourhood, with supporting photographs of the locations and what is seen from said location.Hartley Film Foundation, National Geographic All Roads Film Project, Lucius and Eva Eastman Fun