An aerial view shows Muslim pilgrims gathering on Mount Arafat, also known as Jabal al-Rahma (Mount of Mercy), southeast of the Saudi holy city of Mecca, on Arafat Day which is the climax of the Hajj pilgrimage on August 31, 2017.
Arafat is the site where Muslims believe the Prophet Mohammed gave his last sermon about 14 centuries ago after leading his followers on the pilgrimage. / AFP PHOTO / KARIM SAHIB