In Minas the designing of churches marked the beginning of more than a century of construction during which projects were constrained within the narrow limits of Jesuit tradition. The results were temples with simple exteriors but richly decorated interiors.

The first capital and diocese of Minas, Mariana was founded in 1711. Its principal attractions are the Archdiocesan Museum, the Carmo and Saint Francis churches and the Cathedral. On the road between Ouro Preto and Mariana lies the old Passagem gold mine which offers tours to visitors. Music lovers will not want to miss the concerts performed on the Cathedral's Arp Schnitger organ manufactured in 1701. They are given on Fridays at 11:00 a.m. and Sundays at 12:15 p.m.