Downtown Calgary is very walkable when you consider both the grid alignment of the streets and avenues and the indoors pedestrian walkways that connect the majority of the buildings here. They call that the Plus 15 network as the bridges that connect the buildings are about 15 feet above street level. It is nice in the winter you could go almsot anyhwere without having to go outside. Ive explored street level quite a bit so now I am making an effort to get inside and see some of the views there as well.