The Museo Dr. Francia occupies a colonial-era house that belonged to the family of José Gaspar Rodríguez de Francia, Paraguay's most controversial founding ruler. The building is an excellent example of Paraguayan rural colonial architecture: thick adobe and stone walls, ceramic tile roof, and the characteristic corredor (shaded walkway) that wraps around the house.
The three main rooms contain period furniture, large paintings of Paraguayan independence figures, and items connected to the Francia family. It is a small but well-presented museum that fills in the history of this corner of Paraguay for visitors who have come primarily to see the church. The house is located a couple of blocks from the Iglesia San Buenaventura — the two together make a coherent morning in Yaguarón.