Heaven = sky, Hell = underearth

Just out of sudden this thought come into my mind...

When looking to temples, church, mosque and all other religion buildings.. most of them are tall, is this mean it will be closer to the heaven..? (I know actually it is that religion place is significant to most human, thus making it higher and more people can see, then it will make everyone "focus"/center and remember all the time...) Anyway, that's not my point.

My point is as simple as my title, when talk about heaven, most of the religion mean something high on top of us, while when talk about hell, it will definitely be underground...

Well, I have this weird thought, earth is where we stand on, the most important thing that support us, the most stable thing in the world... while on top of us.. nothing there actually really support us (air is surrounding us, not on top of us)!!!! So, why? Why heaven is high above that is so unstable? Why not hell on top?? As it is so uncertain and unseen (I think the universe is so so so huge and too much of uncertain out there)... or in fact, both heave and hell is "next door".. hehehehe...

OK.. just my thought!!