The Stavros Niarchos Foundation Cultural Center in Athens, where Make-A-Wish Greece is marking its 30th anniversary. Credit: Sumela Pantzartzi/AMNA. Make-A-Wish Greece is marking thirty years of granting life-changing wishes for children suffering from critical illnesses, with Athens turning blue this week in honor of the organization’s anniversary and World Wish Day. The milestone celebration is unfolding at the Stavros Niarchos Foundation Cult…