Incredible But True Incredible But True Human World History Makers Cities Of The World Art And Music Sporting Headlines Plant Life Fish, Amphibians, Reptiles Birds and Mammals Creepy Crawlies Marine Life Restless Earth Earth's Secrets Changing Weather Seas And Oceans Comparisons Amazing Structures Machines And Man World Of Inventions Travelling Around Mysterious Universe	Going Straight The railway line crossing the Nullarbor Plain in Australia has the longest stretch of straight track in the world - 478 km without a bend or curve.   Previous: Back Book: Incredible But True Section: Incredible But True Chapter: Travelling Around