[dropcap]J[/dropcap]oin John Hardy on a tour of the Green School, his off-the-grid school in Bali that teaches kids how to build, garden, create (and get into college). The centerpiece of campus is the spiraling Heart of School, perhaps the world’s largest freestanding bamboo building. Jewelry designer John Hardy co-founded the extraordinary Green School in Bali, where kids get a holistic and green education.