Gwalior Fort is not just a monument; it is the city above the city. The ridge runs for more than two kilometres, with sheer sandstone sides, massive gates, water tanks, temples and palace remains. You can rush through the main palace and viewpoints, but the fort is far better if you give it a morning and let the geography sink in.
The approach road itself is part of the experience, passing carved Jain figures and defensive gates before reaching the plateau. Once on top, distances are longer than they look. Prioritise Man Mandir Palace, Teli ka Mandir, the Sasbahu Temples and the views over the plain.