The National Cherry Blossom Festival is one of Washington’s most popular tourist attractions, drawing around 1.5 million visitors for three weeks of street parties, concerts, family activities and days to go fly a kite. And, of course, the chance to see the fluffy pink and white petals that turn the trees around the Tidal Basin and the Washington Monument into a dazzling floral display, reminding us that winter is over, and brighter days are on the way.