I am taking the dc (4yo and 7mo) to Birmingham on Saturday to meet up withh their grandparents- we live very far away from each other and Birmingham is halfway iyswim. I don't particuarly want to spend the whole day shopping, but bearing in mind we will all be arriving on the train, and hence will have no car, what kind of things are there to do? Dd is fixated on dinosaur museums since we took her to the Natural History Museum. Is there anything similar nearby?