Participants dressed all in white wave their napkins to signal the beginning of the meal as they attend a “Diner en Blanc,” or “Diner in White,” in the King’s Cross area of London on September 3, 2015. The yearly tradition dates back to an event 27 years ago in Paris at which organizers invited guests to all wear white so they could be easily spotted in a park. This year, about 70 cities in more than 35 countries have or will see a Diner en blanc, from Paris to Johnannesburg and from Montreal to Tokyo.



