Basilica of the Immaculate Conception, Mongomo, Minor basilica in Mongomo, Equatorial Guinea.

The Basilica of the Immaculate Conception is the largest religious structure in Central Africa, located in the center of Mongomo. It accommodates around one thousand worshippers and features a modern interior design.

Construction began in 2006, funded by the Equatorial Guinean state and carried out by the Italian company Makinen Venture, with interiors and finishes by Ruffini Decorazioni. The basilica was consecrated on 7 December 2011 by Nigerian Cardinal Francis Arinze, representing Pope Benedict XVI, who read the decree granting it the dignity of minor basilica.

Inside the basilica stands a replica of Esperanza Macarena from Seville, showing the connection between Spanish and Equatorial Guinean Catholic traditions. This statue reflects how religious devotion is shared across these two nations.

The basilica is easy to find since it sits in the center of Mongomo and stands out as a notable building. Visitors should know that it is most crowded during regular worship services.

The basilica is sometimes wrongly called a cathedral because of its size, but it was not built as the seat of a bishopric. It is the largest religious building in Central Africa and the second largest Catholic church in Africa, after the Basilica of Our Lady of Peace in Yamoussoukro.