How much of the original structure remains of mission san Luis obispo de tolosa?

Mission San Luis Obispo de Tolosa, founded in 1772, retains a significant portion of its original structure, including the main church, which showcases its historic Spanish colonial architecture. While the mission has undergone various restorations and renovations over the years, much of the original adobe walls and foundational elements remain intact. The mission complex also includes a museum and gardens that reflect its rich history. Overall, it serves as a well-preserved example of California's mission heritage.