Durian's smell is famously divisive. But in Asia and the Pacific Islands, durian is known as the "King of Fruit." Nonthaburi, Thailand, is known for cultivating some of the most sought-after durian varieties: Kan Yao and Mon Thong. In 2019, one Nonthaburi, or nont, durian sold at auction for $48,000. So, what makes this pungent, spiky fruit so expensive?