Architect Edgar Oliveira da Fonseca designed this unique building. The monumental construction in the form of a truncated cone is 106 meters in diameter at the base and 96 meters high. It is decorated with 48 low-relief bronze plaques focusing on the theme of Faith.
Inside, the stained glass windows are in vivid colours, spanning the walls on the four cardinal points, allowing sunlight to filter in with varying intensity at different times of the day, thus creating a mystical atmosphere.
The designs in each band of stained glass are differentiated by colour, mirroring the very symbolism of the Catholic Church.
The sculptures adorning the church interior and the panels inside the sacristy were made by Humberto Cozzi.
The basement houses the Sacred Art Museum ,with special mention of the fonts used to baptize the princes of the Royal Family, a statue of N.S.do Rosario, the throne of Dom Pedro II, and the Golden rose awarded to princess Isabel by Pope Leo XIII to celebrate her signing of the Abolition Act.
