Colegio de San Ignacio de Loyola Vizcaínas is a non-profit educational institution which was established in the mid 18th century in a Baroque building that occupies an entire city block in the historic center of Mexico City. The school has maintained most of its mission and organization and is the only continuously operating colonial era institution in Mexico. It was originally established for the education of orphaned girls and widows, but now it is co-educational. It offers education from kindergarten through preparatory school.