TOPSHOT - Muslim pilgrims perform the final walk around the Kaaba (Tawaf al-Wadaa), Islam's holiest shrine, at the Grand Mosque in Saudi Arabia's holy city of Mecca on August 13, 2019. - Muslims from across the world gather in Mecca in Saudi Arabia for the annual six-day pilgrimage, one of the five pillars of Islam, an act all Muslims must perform at least once in their lifetime if they have the means to travel to Saudi Arabia. (Photo by Abdel Ghani BASHIR / AFP) (Photo by ABDEL GHANI BASHIR/AFP via Getty Images)