Jesuit Missions of the Guaranis: San Ignacio Mini, Santa Ana, Nuestra Señora de Loreto and Santa Maria Mayor (Argentina), Ruins of Sao Miguel das Missoes (Brazil)

San Ignacio Miní was one of the many missions founded in 1610 in Argentina, by the Jesuits in what the colonial Spaniards called the Province of Paraguay of the Americas during the Spanish colonial period. It is located near present-day San Ignacio valley, some 60 km north of Posadas, Misiones Province, Argentina. In 1984 it was one of four reducciones in Argentina to be designated by UNESCO as World Heritage Sites.

Source: Wikipedia