17-year-old Maci Currin has the longest legs in the world, says the Guiness Book of World Records. She stands six-feet-ten-inches tall, and her legs alone measure four-feet-five-inches, accounting for 60% of her body height! But being tall isn’t easy. When the Austin, Texas, teen lays in bed, her feet dangle over the end of the mattress! She also spends a lot of time ducking under door frames - and watching out for ceiling fans!