In the Colegio Chico del Antiguo Colegio de San Ildefonso is the Light Museum, a space where different facets of the phenomenon of light are explored.

It is divided into the following galleries: Nature of Light, Starlight, A world of colors, Light in the arts, Light and the biosphere and the Vision and Office of the Optometrist. The space is run by the Dirección General de Divulgación de la Ciencia de la UNAM and seeks to promote a scientific and technological culture in society. They also conduct workshops, conferences and courses relating to light. It hosts workshops and conferences for children, so they be close to science and learn about certain physical events at the same time in a fun way. For example, in the workshop “Kaleidoscope”, kids will make their own kaleidoscope and learn why images are always symmetric and changeable.