Kat, the ones described as pics from a Finnish museum are what I do. I actually have seen them around Nova Scotia here and there, thought they looked neat, and learned how to build them at Ross Farm Museum in Nova Scotia. Mine tend to look quite iglooish, likely 'cause I'm not seven feet tall, and don't build them higher than I can easily reach the top of. From the notes in that forum, looks like they are called beehive woodpiles.

I've also seen them built with slabwood (mill ends, great cheap source of firewood and kindling)leaned on end, kind of shingle style.

The other wood pile style with the pole in the middle no doubt works great, but looks labour intensive, whereas the beehive is less work than stacking your wood in conventional rows, since you needn't stack the 'filling', just toss it in loose. I've actually seen one place where the woodpiler had built 'windows' into the sides of his beehive piles nearest the house, big enough to reach in and get quite a lot of wood out without disturbing the integrity of the pile.