Places to See Before You Die: largest cave in the world

on
                         Photographer Ryan Deboodt, capture footage showing the immense size of
                                                   the Hang Son Doong cave in Vietnam.


              The cave was first discovered in 1991, when a local farmer stumbled across it and
              sought shelter there from a storm. Before the chance discovery, it had remained
              undetected beneath the Annamite Mountains in a remote part of central Vietnam
              for millions of years.

                       The drone captures the staggering height of the cave and people in the images
                                                         appear to be specks on the landscape.