The Monument to the Constitution of 1812 dominates Plaza de España.
The lower level of the monument represents a chamber and an empty presidential armchair. The upper level has various inscriptions surmounting the chamber. On each side are bronze figures representing peace and war. In the center, a pilaster rises to symbolize, in allegorical terms, the principals expressed in the 1812 constitution. At the foot of this pilaster, there is a female figure representing Spain, and, to either side, scuptural groupings representing agriculture and citizenship.