On the east side of the Plaza Mayor is the Museum of Guamuhaya Archeology ("Museo de Arqueología Guamuhaya"). Guamuhaya is the name for the local area in one of the languages of the indigenous Cubans, and the museum features Pre-Columbianb finds as well as articles from the time of the Spanish conquest. The building was constructed in the 18th century. Although who the original owner was is not clear, the building was purchased in the 19th century by Antonio Padrón, who added a portico facing the square and extended the roof. Alexander von Humboldt stayed with Padrón during his visit to Cuba, and his bust is displayed in the courtyard of the building.