TIL that the Hawaii’s Maunakea Volcano, the world’s tallest mountain, (10,210 m or 33,500 ft from base to peak) was first ascended successfully over three days in February 2021. Over half of it is underwater. sfgate.com Submitted by Fantastic_Ad1613 t3_zxxwt5 on December 29, 2022 at 6:20 AM in todayilearned 45 comments 236