According to the always entertaining Vsauce, this is the volume that the entire human population would take if you put everyone on a pile in the Grand Canyon. We are just a bunch of ants, yet we have managed to transform the entire landscape of Earth.*
* Even if you took all of humanity across all the ages (an estimated 106 billion) the piles, around 15 the size of the one pictured, wouldn't cover the Grand Canyon. Not even a significant fraction.