Some years ago the museum acquired an extension at one end, marked by a new tower entrance. The new bit had the History of Technology stuff and there was a lot to look at in there. The trendy architectural layout was a bit confusing. Now I hear that the old bit, with the galleried hall, has been given a make-over. A major destination – it’s probably impossible to see everything in one day. Suggested visit duration: as much time as you feel like devoting to it.