a Public Art genre in its own right: the roundabout sculpture?

... I was lucky enough to meet Katharina Blaas from the Public Art Lower Austria Fund yesterday, and it was such a charming conversation we had about aspects of Public Art outside urban areas - and then she briefly mentioned that the roundabout-sculpture is kind of a Public Art genre in its own right. True, no? There are good examples, and absolutely horrible ones. Adorable: the big little onion by Leo Schatz in Unterstinkenbrunn...