Thanks for the nice BTW. And yes, I am happy that I have done it, since there is not even a website of the city presenting the exhibition park and the artworks. 
I spent really a lot of time trying to map as precise as possible the localisation and to take pictures and put them in wikimedia... so, if you have a bit of time to delete the "senza titolo" (some have title, and I put it), I would be really grateful. If not, I will do it.