[dystroy]

If you look at the article, you'll see the picture of such sculpture (a rather impressive one, by the way).

[m463]

I didn't see that, are you talking about the bird's leg?

[akovaski]

The last image is a pair of pictures of Needle Tower and Needle Tower II, which you can search for if the image doesn't load in the article for you.

[m463]

oh sorry, I read the article, then switched to the paper

https://hal.science/hal-04287433/file/Version%20HALL.pdf