Del­hi’s first and grand­est mosque, now most­ly in ruins, but many parts of the com­plex are still stand­ing and the sand­stone dec­o­ra­tions are still impres­sive. Check out the extra­or­di­nar­i­ly ornate carv­ings near the ”’tomb of Iltut­mish”’ on the west side of the com­plex.