Paris Mayor Anne Hidalgo, right, and the co-president of the Paris bid for the 2024 Olympics Tony Estanguet paddle on the Seine river in Paris Friday, June 23, 2017. Paris is aiming to boost its bid for the 2024 Olympics by turning some of its world-famous landmarks over to sports for two days, with 100-meter races on a track floating on the Seine, high-diving into the river, cycling around the Arc de Triomphe and other events to showcase the French capital's suitability for the games. (Martin Bureau, Pool via AP)