Join一 科学与技术 upcoming events being held in São Francisco do Piauí. São Francisco do Piauí is a charming city in the Brazilian state of Piauí, known for its rich history, colonial architecture, and vibrant festivals, such as the Festa de São Francisco, which celebrates the city's patron saint with music, dance, and traditional food, making it an ideal destination for travelers seeking to immerse themselves in Brazilian culture and history.