The Hammering Man

Today I went to get a different bus home from work and saw that the usual bus stop was suspended. The directions were to go to 'Hammering' and I thought this to be a ring road name, as we have Riehenring, Spalenring, and tried to find 'Hammering' on my map on my phone. It was then that I realised it was describing the huge sculpture the other side of the road...