Fort Mason is a historic military installation located in San Francisco, California. Established in the mid-19th century, it served as a key coastal defense site during the Civil War and World War II. Today, it is part of the Golden Gate National Recreation Area and features various cultural and recreational facilities. The area around Fort Mason includes the Marina District and offers stunning views of the Golden Gate Bridge. It hosts several art galleries, theaters, and community events, making it a vibrant hub for both locals and tourists. Visitors can enjoy walking trails and waterfront access in this scenic location.