Mission Dolores is the oldest surviving structure in San Francisco, California. Founded in 1776 by Spanish settlers, it was part of a series of missions established to spread Christianity among the Native American population. The mission is named after Saint Francis of Assisi and is known for its beautiful architecture and historical significance. The mission complex includes a church, cemetery, and museum, showcasing artifacts from the early days of California. Today, Mission Dolores Park nearby offers recreational space for locals and visitors, making it a popular destination for both history enthusiasts and those looking to enjoy the outdoors.