If you like tanks, you’ll love the Tank Museum, the national home of everything tank related. Not sure I’d agree with TripAdvisor that it’s the best thing to do in Dorset, but it is certainly the best thing to do on a rainy day.
Just up the road from the museum is Clouds Hill, the home of T.E. Lawrence (aka Lawrence of Arabia), a small cottage managed by the National Trust. Good thing he was only 5,5ft as at 6ft my head was touching the rafters and the steep staircase was even tighter. It’s a rather touching place though, brought to life by a pair of very knowledgeable volunteers and well worth a visit.