The Great Pyramid of Cholula, in Puebla, is called Tlachihualtépetl, “hill made by hand.” According to an INAH researcher quoted by N+, it is the “basamento piramidal más grande del mundo” (the largest pyramid base in the world), with more than 450 meters per side.
Much of it remains buried. On top stands the sanctuary of the Virgen de los Remedios.