Old St. Mary's Cathedral

The Old Cathedral of St. Mary of the Immaculate Conception is a proto-cathedral and parish of the Roman Catholic Church located at 660 California Street at the corner of Grant Avenue in the Chinatown neighborhood of San Francisco, California. It was built in 1854 in the Gothic Revival style, and was made a Designated San Francisco Landmark on April 11, 1968.
Old Saint Mary's cornerstone was placed on Sunday, July 17, 1853 at the corner of California and Dupont Streets by the Bishop of Monterrey Joseph S. Alemany. With its dedication by Alemany, now as the new Archbishop of San Francisco, at Christmas Midnight Mass, 1854, it became the first cathedral of the Archdiocese of San Francisco. It is the first cathedral in California to be built for the express purpose of serving as a cathedral, although other churches in the state served as cathedrals before it was built. When it opened, it was the tallest building in San Francisco and all of California.

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