Iraqi Shiite Muslims take part in commemorations marking the 8th day of Muharram ahead of Ashura in the southern city of Basra. AFP / Hussein FALEH

French artist Manolo trains his horse Indra to swim in the "Calanque of Sormiou" in Marseille. AFP / Christophe SIMON

Pope Francis arrives in Papamobile to celebrate a mass at the monument to Mary, Queen of Peace in Port Louis, Mauritius. REUTERS/Yara Nardi

Prince Dudeman stands on Ryan Thor's head at the 14th annual Helen Woodward Animal Center "Surf-A-Thon" where more than 70 dogs competed in five different weight classes for "Top Surf Dog 2019" in Del Mar, California. REUTERS/Mike Blake

A model displays a creation featuring the Korean alphabet, Hangeul, by one of 40 designers during the Hangeul fashion show as a part of Seoul 365 Fashion Show at the National Hangeul Museum in Seoul. (AP Photo/Lee Jin-man)

Rafael Nadal, of Spain, reacts after defeating Daniil Medvedev, of Russia, to win the men's singles final of the U.S. Open tennis championships in New York. (AP Photo/Sarah Stier)