Rosario has no founding charter — it grew from a 1730s river chapel into the port that fed Europe. Here Belgrano first raised the Argentine flag in 1812, Che Guevara was born in 1928, and immigrant dockworkers made it 'the Argentine Barcelona'.
Rosario's origin point: the 1731 Capilla del Pilar stood here before the current 1887 basilica. Inside is the Virgen del Rosario image brought from Cádiz in 1773, in an Italian Carrara marble altar. Open daily 07:30–20:00.
Argentina's finest colonial-era collection outside Buenos Aires: Cusco School paintings, Jesuit mission silver, Alto Perú religious woodcarving and pre-Hispanic ceramics from the Paraná littoral. Tue–Fri 09:00–17:00, weekends 14:00–18:00.
A 1890s grain-merchant mansion on Plaza 25 de Mayo, frozen as the Estévez family left it in 1968: Roman glass, Greek terracotta, a 16th-century Flemish tapestry and El Greco-circle panels amid Belle Époque rooms. Wed–Sun 14:00–19:00.
Housed in the 1880s Casa del Molino Sanmartino, it traces Rosario from Querandí and Chaná-Timbú river peoples through the 1689 Pago de los Arroyos land grant to the 1852 decree that finally made the settlement a city.
Below the 1957 monument lies the crypt with Belgrano's remains-relic and the Propileo's eternal flame; the Pasaje Juramento holds six bronze allegories of Argentina by Lola Mora's successors. Open 09:00–18:00 daily.
The exact riverbank where Belgrano raised the flag on 27 February 1812 while building the Independencia and Libertad artillery batteries against Spanish ships sailing up the Paraná. Bronze markers show the gun emplacements.
The 1927 Palacio Fuentes on Santa Fe y Sarmiento was South America's tallest building when built; opposite, the 1929 Bolsa de Comercio still sets world soy prices. Together they show the grain boom that made Rosario 'the Chicago of Argentina'.
The 1930s mansion at Córdoba y Moreno was the army command that ran Rosario's clandestine detention centres in 1976–83. Now a memory museum with testimony archives and the Monumento a las Víctimas outside. Tue–Fri 10:00–17:00.
The 1900 British-built Central Argentine Railway station and the surrounding Refinería neighbourhood — sugar refinery, workshops and English-style railway housing — formed the engine of the grain export chain to Liverpool.
Rosario's old red-light and warehouse district, home to Italian, Spanish and Jewish immigrants and the 1900s tango-and-anarchist scene. Its 1890s corralones now house the Mercado del Patio in the restored railway goods depot.
Rosario's Jewish community arrived from Russian pogroms via Moisés Ville colony in the 1890s; the archives and the 1920s synagogue on Paraguay document the shtetl-to-Pampas migration alongside Italian mutual-aid society records.
The Edificio Davis grain elevators, Silos Davis (1930s) and the Molino Fénix flour mill mark where 1920s Rosario shipped a third of Argentina's wheat. The concrete silos are now hotels and lofts but the loading chutes remain.