Saurimo is the seat of a Roman Catholic Archdiocese, and its cathedral is the most prominent colonial-era building in the city centre. The archdiocese was elevated from a diocese in 2010, reflecting the region's growing Catholic population. The church is active and often crowded on Sunday mornings, when congregations in their best clothes spill onto the square outside. The interior is plain but the building's whitewashed facade and bell tower make it an easy landmark when navigating the city.