The models really gave a good impression of the sort of destruction inflicted on the city by the bomb.
the models were inside the museum also in the park - it went into great detail of the after-effects of the bomb, but also gave a lot of information regarding current nuclear weapon technology, as well as current levels of nuclear proliferation.
We didn't take any photos of the memorial hall, but it was a very moving room built underground in the park, featuing a 360 degree panorama of the city built onto the walls of a circular room, in the centre of which was a water feature. The feature was built to offer water which the survivors of the impact cried out for.
At no point did anything related to the incident attempt to impose any bias or point fingers, but simply presented the facts as they exist and for this I think it should be commended (it can be so easy to try and lay blame, but this was not the purpose of the park).