Merrill, Robert H., 1881-1955, “Cholula pyramid,” Digital Collections, accessed December 6, 2025, https://digitalcollections.library.gvsu.edu/document/50395.
Black and white photograph of a pyramid. A lower level is visible with a stone wall surrounding a stone building built into a hillside. A water tower is visible behind the building. Another building is visible is on top of a hill behind the first structure. The building is a church built on top of the pyramid.