For more than a decade, the focal point of Memorial Day weekend festivities in Kansas City has been the Celebration at the Station, an outdoor performance by the Kansas City Symphony at Union Station with a massive fireworks display over Liberty Memorial that attracts about 50,000 people.And the show did go on Sunday evening, as the rain held off and an enthusiastic but smaller than normal crowd was able to take in the patriotic music, tributes to the troops and fireworks.