On the west side of Luján's gargantuan basilica plaza, this gorgeous colonial-era museum complex rambles with several display rooms, pretty patios and gardens. The Sala General José de San Martín showcases Argentina’s battles for independence, while the Sala de Gaucho contains some beautiful mate (a bitter ritual tea) ware, horse gear and other gaucho paraphernalia. Also part of the complex is the fascinating Museo del Transporte .