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	Mighty Mauna Measured from the base, the tallest mountain isn't Everest but Hawaii's Mauna Kea, which rises to a height of 9,500 metres from the seabed. Some mountains begin at the great depths of the sea bed   Previous: Back Book: Incredible But True Section: Incredible But True Chapter: Restless Earth