Mission San Francisco Solano

At Sonoma Plaza’s northeast corner, the mission was built in 1823, partly to forestall Russians at Fort Ross from moving inland. This was the 21st and final California mission – the northernmost point on El Camino Real – and the only one built during the Mexican period (the rest were founded during the Spanish Colonial era). Five original rooms remain. The not-to-be-missed chapel dates to 1840.