1. A spatially referenced photographic system comprising: a data base containing plural images of objects and also containing information corresponding to said images defining the position at which each image was originally viewed and the orientation of the image with respect to that position, image presentation and navigation means for displaying the images to a user and for facilitating the user in navigating among said images by receiving spatial movement commands from the user, as indicated by said spatial movement commands; wherein said image presentation and navigation means includes means for displaying, along with an image, a view of the camera path and an indication of the camera position and orientation when the image was recorded, wherein camera position and orientation is indicated by a mark on the path oriented as the camera is oriented to point where the camera was pointing; and wherein the view is a plan view and wherein the mark bears an indication thereon of the yaw angle of the camera.