Bahía Blanca is a port city in the southwest of Argentina’s Buenos Aires province. Grand 19th- and early-20th-century buildings like the Palacio Municipal line its central square, Plaza Rivadavia. Museum highlights include the Museo y Archivo Histórico and the Museo del Puerto de Ingeniero White, both documenting the lives of immigrants. The city is known as a gateway to Patagonia, farther south. Bahía Blanca means "White Bay" due to the typical colour of the salt covering the soils surrounding the shores.