Hana Highway, Hawaii
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Photo: Hana Highway in Maui, Hawaii. (photo via ironrodart/iStock/Getty Images Plus)
The Hana Highway or Road to Hana on the Hawaiian island of Maui is a 52-mile coastal route connecting Kahului and Hana that requires lots of patience. The journey includes a whopping 617 hairpin curves and dozens of one-lane bridges. Plus, the speed limit doesn't exceed 25 mph. Nonetheless, if you've got the time you won't regret spending it on the Hana Highway, which wows drivers with waterfalls, lush rainforest, beaches and mouthwatering roadside stands.