At the east end of Plaza San Martín, its interior adorned with tributary plaques, the Templete Sanmartiniano protecting the excavated remains of San Martín’s birthplace is a textbook example of chauvinistic hero worship. Interestingly, though, the controversial plaque on which Proceso dictator General Jorge Rafael Videla professed his “most profound faith” in San Martín’s ideals of liberty no longer disgraces the Liberator’s memory. The official explanation is that all other such plaques are from institutions rather than individuals, but the aging Videla’s nonperson status (he remains under house arrest in Buenos Aires for kidnapping children during the 1976–1983 “Dirty War”) is evident.

Two blocks west, several small contemporary pavilions sit atop Jesuit foundations at the Museo de Cultura Jesuítica Guillermo Furlong (Sargento Cabral and Obispo Romero), an open-air museum that is always open to the public. Each pavilion has a good photographic display of the missions and their history, while a handful of mission artifacts (most notably a sundial) surround them.

At the south end of Avenida del Libertador, at the army’s Granaderos regimental headquarters, the Museo Sanmartiniano (free) intensifies the hero worship with San Martín family artifacts and documents. Hours vary, so good luck.