After much dithering - will we, won't we, Rohit and I took a detour to visit the Mauthausen Concentration camp memorial. It was primarily a work camp but it also had a small gas chamber and a crematorium. The we're many photographic displays and the German captions needed no translation. What was the most striking was the diversity of the ethnicity of the victims. I never expected to see Spanish and Chinese memorial plaques for example. It was a very silent descent from the hill top where the camp was situated.