Crayola Experience will mark its 30th birthday 11 a.m. to 4 p.m. Thursday., July 16, in Centre Square with a free outdoor celebration featuring family-friendly activities, character meet-and-greets, music, and more. An official ceremony will be held at 2:30 p.m. with Pete Ruggiero P’20,’25, Lafayette Trustee, and president and chief executive officer of Crayola, and local leaders.