Here is the link to the Sun Stone in Mexico’s National Museum of Anthropology, it can be quite tricky to find.

https://www.google.com/maps/@19.4261462,-99.1867492,3a,75y,254.54h,91.66t/data=!3m8!1e1!3m6!1sAF1QipOaCcDRbeopi3n_tB6iarYr-6whzr1iPcIgaBBd!2e10!3e11!6shttps:%2F%2Flh5.googleusercontent.com%2Fp%2FAF1QipOaCcDRbeopi3n_tB6iarYr-6whzr1iPcIgaBBd%3Dw203-h100-k-no-pi0-ya5.2452416-ro-0-fo100!7i8704!8i4352