Even when I was in high school and college, geography always fascinated me. For me, the least surprising in this list (only because I was familiar with Mediterranean Climates):
Easily the most stunning for me:
That simple piece of human geography just about floored me. Then, I thought about the major centers of commerce, the dominant nation states of the world, and the points of long-lasting crises, and suddenly it was no longer that stunning. And only I failed to take it all into account. Makes me recall comedian Paul Rodriguez's quote:
"Sometimes I think war is God's way of teaching us geography."