The Deutsches Kleingartnermuseum tells the story of Germany's allotment garden culture, a subject that sounds minor until you realise how deeply these little plots shape urban life. Leipzig is an apt place for it, because the Schreber garden movement has strong local roots.
The museum is small, but it gives useful context for the garden colonies you notice around German cities from train windows and tram lines. It is best for travellers who enjoy social history, everyday culture, and the odd specificity of a museum that could only really exist here.