20070613 - MECHELEN, BELGIUM: (L-R) Prince Philippe and Princess Mathilde of Belgium and their daughter Princess Elisabeth (front) attend the opening of a new Interactive Children's Center (Kinder-Doe-Centrum, Centre Interactif pour les Enfants) at Technopolis in Mechelen, Wednesday 13 June 2007. This new area in Technopolis is aimed at children aged four to eight and helps them dicover sience and technology behind ordinary things in an interactive way. BELGA PHOTO LIEVEN VAN ASSCHE *** Local Caption *** t