How The World's Largest Cave Remained Hidden For Millions of Years
In terms of wonders of the world, you would think that most of the Earth has been revealed to us. With greater technology, advancements in satellite mapping and thousands of years of human history on our side, where could possibly remain unknown to humanity? Sure, we know that large sections of the sea remain a complete mystery but we don't live in the sea and its inherent wetness and pressures where it gets deep makes it somewhat more perilous than land. However, the ground on which we roam and subside should now be an entirely known quantity to us and yet there are places that remain only recently discovered that also raise the question of 'is there more to be found?'
One such place is Hang Son Doong, also known as Son Doong cave, 'cave of the mountain river' or 'mountain cave of Đoòng [village]' in Vietnam. Whilst this may seem less of a surprise that it went such a time without being tracked down, its sheer size and scale, along with how late it was unearthed make it really quite impressive with how it wasn't stumbled upon much, much sooner.