Museo Regional Potosino

Museo Regional Potosino, run by Mexico's National Institute of Anthropology and History (INAH), occupies the former Convento de San Francisco adjoining the Templo de San Francisco. The ground floor covers pre-Hispanic Huastec archaeology of the region with pottery, tools and funerary pieces, while the upper level holds the museum's signature attraction: the gilded Capilla de Aranzazú, a small churrigueresque chapel whose walls and ceiling are covered almost entirely in carved and gilded ornament, hidden behind an unassuming convent doorway. A full visit takes 1 to 1.5 hours, with the Aranzazú chapel alone worth 15 to 20 minutes of unhurried viewing given the density of its decoration. The chapel is best photographed from its center looking up toward the ceiling, where the gilding is most concentrated, though low interior light can make handheld photography challenging. Weekday mornings are the quietest time to visit, before tour groups arrive; the museum offers free admission on Sundays for Mexican nationals and residents, which draws larger local crowds on that day. Visitors focused on architecture and colonial art should prioritize the Aranzazú chapel, while those interested in regional prehistory will find the ground-floor archaeology galleries the more rewarding stop.