You could visit a mining site and go down haha. How flat do the believers think the world is? Is it supposed to be 2 dimensional or are they saying its a few miles wide or what?
I actually never heard about how they think about the depth of earth.@Batman: Can you dig "through" earth and fall off?
If you go up to the top of a building - don't make it a tall building; 3 stories high is enough - and you jump off, do you fall up or down? You fall down, of course.
The point? If you dug through the earth to the other side, and you fell out of the hole you dug through, can you call that falling up?
