Jean Tinguely, a Swiss sculptor and painter, grew up in Basel and has his own museum here on the banks of the Rhine. His works are mostly mechanical devices, using moving parts to generate their impact. Perhaps the most well-known, at least to English speakers, is the Stravinsky Fountain beside the Centre Pompidou in Paris.

It is difficult to capture the motion of his sculptures in stills, but in winter the ice forming on the Tinguely Fountain (built in 1977 in front of Basel’s theatre complex) provides a trace of movements past. Perhaps video is a better medium. Each statue in the pool has its own name, and in the coldest periods some of them become covered in towers of solid ice.