Mission San Juan Capistrano is one of the 21 California missions founded by Spanish Franciscan missionaries. Established in 1776, it is located in San Juan Capistrano, California. The mission is known for its beautiful architecture, including the iconic Serra Chapel, which is the oldest standing building in California. The mission played a significant role in the spread of Christianity among the Native American population. It served as a center for agriculture and education, helping to develop the local community. Today, Mission San Juan Capistrano is a historic site and museum, attracting visitors interested in California's mission history.