People walk on the Champs-Elysees, September 27, 2015 as central Paris goes car-free on Sunday. The French capital's central arrondissements and areas around landmarks such as the Eiffel Tower and Champs-Elysees are free from car noise and exhaust fumes, allowing people to stroll, cycle or skate between 0900 GMT and 1600 GMT. REUTERS/Philippe Wojazer