Saint Mary's Cathedral in San Francisco is a prominent Roman Catholic church known for its striking modern architecture. Completed in 1971, it was designed by architect Pier Luigi Nervi and features a unique, tent-like structure made of concrete and glass. The cathedral can accommodate around 1,000 worshippers and is recognized for its stunning stained glass windows. The cathedral serves as the mother church of the Archdiocese of San Francisco and hosts various religious services, including Mass and weddings. Its location on Gough Street makes it a central landmark in the city, attracting both locals and tourists who admire its architectural beauty.