Jorge Robledo founded the settlement in 1541 as Villa de Santafe on the western bank of the Cauca River, and within four years King Philip II of Spain had granted it a coat of arms and the formal title City of Antioquia. Gold mining drove the economy from the start, drawing settlers into the mountainous terrain of the Central Cordillera. By 1547, the bishop of Popayan had elevated it to parish status, and when it became the provincial capital in 1584, the name changed to match. The cathedral, completed in 1799, was elevated to a diocese by Pope Pius VII in 1804. In 1813, Antioquia declared itself a sovereign and independent state with Santa Fe as its capital -- a status it held until Medellin, with its larger population and economic clout, took over as the departmental seat in 1826.

Spanning 291 meters across the Cauca River, the Puente de Occidente is the town's most dramatic landmark. Construction began in 1887 under the direction of Jose Maria Villa, a Colombian engineer who had studied at the Stevens Institute of Technology in New Jersey and participated in building the Brooklyn Bridge. Villa adapted what he had learned in New York to local conditions: cables and steel purchased from England, towers constructed from regional materials. When the bridge opened in 1895, it was considered the third largest suspension bridge in the world. It connected Antioquia's central and western regions to the northwest, transforming commerce across the department. Declared a National Monument in 1978, the bridge still stands -- an improbable echo of Brooklyn, suspended above a Colombian river valley.

The colonial architecture survived largely because economic forces moved elsewhere. When Medellin became the departmental capital, investment followed, and Santa Fe settled into a quieter existence that left its buildings intact. The preservation was so remarkable that the Colombian government declared the entire town a national monument in 1960. Streets retain their original cobblestones. The Archiepiscopal Palace, the House of the Two Palms, and the Museum of Religious Art all occupy buildings that have stood for centuries. In 2010, Santa Fe was named one of Colombia's Pueblos Patrimonio, the only municipality in Antioquia selected for the original cohort of heritage towns.

Sitting at low altitude in the Cauca River valley, Santa Fe de Antioquia averages 25.5 degrees Celsius year-round -- warm enough to support water parks, open-air restaurants, and the kind of unhurried weekend pace that draws city dwellers from Medellin, just 58 kilometers to the south. The opening of the Tunnel of the West in 2006 cut travel time dramatically, and hundreds of tourists now arrive each weekend. Coffee, maize, and beans still anchor the agricultural economy, but tourism has become the town's defining enterprise. In 2017, a modernization of the main Plaza Mayor began, closing traffic and adding gardens. The project finished in 2018, giving the colonial center the quiet it had earned over five centuries.