From the air, the Solar School reveals its strangest feature: a great circular gymnasium with a domed roof, sitting like a green eye in the middle of the overgrown grounds. From the ground you would barely guess its shape, but a drone shows the whole geometry, the ring of the building and the cracked dome slowly opening to the sky.

It is a small, quiet ruin, the kind of place the forest is patiently reclaiming from above and below at the same time. I flew the drone over it on a bright autumn day, when the green roof and the golden grass around it made the whole thing look almost like a piece of land art.