Wood stack, full height

After a nice afternoon splitting wood (yes, this is my idea of a good time exercising 🙂), my main wood stack has grown to a height that I deem barely safe. It's 6 times as high as it is wide now, and it's getting quite wobbly.

I've run out of space to stack wood the conventional way. But I have so much wood left to split that I really want to try building a Norwegian wood stack next: