Built a dome.
23.5' diameter, 14' at the peak. 3/4" EMT as the frame, bolted together. It's sitting on weed barrier, but I didn't do a very good job leveling the site and now I'm thinking I need to move the damn thing and put in some base material. But maybe not.
And I have to cover it. I was going to use a surplus parachute, but maybe not. And then I'll anchor it make sure it doesn't blow away. I always wanted to build one and we needed a storage space that could become a greenhouse. That it was a dome was just because.
Even without the cover, it's a lovely space, which I didn't expect. That 3V pattern is pretty cool to look at.