The Cathedral of Saint Mary of the Assumption, located in San Francisco, California, is a prominent Roman Catholic cathedral known for its striking modern architecture. Designed by architect Pier Luigi Nervi, the cathedral was completed in 1971 and features a unique, soaring concrete dome that is one of the largest in the world. Inside, the cathedral is adorned with beautiful stained glass windows and a spacious interior that can accommodate thousands of worshippers. It serves as the mother church of the Archdiocese of San Francisco and is a significant landmark in the city, attracting both locals and tourists alike.