The City of Sonoma is home to the Sonoma State Historic Park, right along the popular and beautiful plaza.
Excerpt from the CA State Parks website:
About Sonoma State Historic Park
Located in the heart of California’s picturesque wine country and birthplace of the California Bear Flag, this park offers the opportunity to experience California’s rich history spread across multiple historic sites near Sonoma Plaza, including Mission San Francisco Solano, General Vallejo’s home and the Sonoma Barracks.
Note: All photos – Courtesy of California State Parks, 2026.