California’s world-renowned wine industry was started in the Sonoma Valley by the fathers who planted the state’s first vineyards at the Mission San Francisco Solano de Sonoma in 1823 and harvested the grapes to make sacramental wines. Located on Sonoma Plaza in downtown Sonoma, the Sonoma Mission is the northernmost and last of the 21 missions built. Be sure to visit the small but informative history museum located in the former padres’ quarters.