Newton's apple stopped as it fell on the ground but this is not the end point of gravity.
The earth's surface is merely a hand held out in the middle of a fall and gravity penetrates this, leading further down towards the center of the earth.
It is said that in the ancient times, there were people who worried that the sky they looked up to would fall some day. Though it is difficult for us living in an age of science to imagine the view of "the sky falling down if we consider this as meaning that "the sky is a place above us resisting gravity, we can imagine the anxiety of ancient people. The blue sky above was probably not an "empty sky but a "place for them.
And the sky fell down. It penetrated vertically through cities, architecture and our bodies, falling underground. The sky has now become an ancient layer of earth permeating below the city we live.