Question

Longest thing in the world

Answer 1

HEYA ❣️

SON DOONG CAVES ARE CONSIDERED AS THE LONGEST CAVES IN THE WORLD.

Answer 2

▪︎The biggest supercluster known in the universe is the "Hercules-Corona Borealis Great Wall". It was first reported in 2013 and has been studied several times. It's so big that light takes about 10 billion years to move across the structure. For perspective, the universe is only 13.8 billion years old.

❄. HOPE THIS WILL HELP YOU BUDDY....♥️❤♥️❤