The Royal Tyrell is easily the best paleontology museum in NA, likely the world. If you or your kid have an interest in dinosaurs, ice age mammals, marine mammals, or Burgess Shale fauna, you want to go there. The specimens there are incredible and most are from the local area. They also do public dinosaur dig experiences where you can go out and dig with them.
I'm not going to hijack an awesome thread further, but I'll post 2 quick pics. Anyone with questions, feel free to hit me up via PM.
Here's a tyrannosaurid preserved in a death pose, where the ligaments on the neck shrank as they dried out after death, with the neck and tail pulled back over the body. There are only a few of these in the world and virtually all are at the Tyrell.
A longhorned bison skull (cattle come from Africa).