A photograph is a substitute for the real world; and the aim of a large panorama is to offer students of Art History as good a substitute for the object/building/ensemble as actually being there.
The best results are obviously obtained with a tripod, plenty of time, a very slow shutter speed, and great care. But in the real world, perfection is not always possible. In my hands, indeed, the construction of panoramas is far from exact let alone perfect. Some of the images in these directories are very far from perfect, but they have been left here because they seem to me to offer more information than their individual constituent images.