The provincial government palace, on the north side of Plaza Independencia, is one of the finest examples of Belle Époque architecture in northwestern Argentina. Built between 1908 and 1912 in an eclectic French academic style, its grand mansard roof, ornate facade, and crowning sculpture of Liberty give the square its imposing northern wall.
The building still houses the offices of the provincial governor. The interior — accessible on guided tours during the week — includes a marble staircase, frescoed ceilings, and salons used for official receptions. The contrast between the European grandeur of the palace and the more modest colonial buildings nearby tells you something about the ambitions of Tucumán's sugar-baron elite in the early 20th century.