Walsham-le-Willows is historically famous, because of the wealth of manor records describing life here in precise detail in the late Middle Ages. But to be honest it's better to read about than to see. A lovely place to live, but there's not much to interest the casual visitor.
Lavenham, on the other hand (where the latter part of the module was filmed) is simply wonderful. It's one of the most enchanting towns in England, full of timber-framed buildings painted in jaunty colours. And the wool church of St Peter and St Paul is truly impressive.