
About 6 feet from each corner they erected a small vertical structure. You can see them in the picture on the right and left of the tower. They’re not in the ground, they’re set on boards with a base that can rotate like an ankle. Then they’re connected to the tower by struts.
Then there’s a scaffolding system that goes all the way around, and can go up and down on those struts like an elevator. You can see in the picture that it’s not just a narrow walkway around the tower either, there are some arms where you can walk out a ways from the tower. It’s brilliant, but it does not look strong enough. That scaffolding must weigh several tons.
I’m very impressed.