Beautiful central plaza designed by Mexican Governor Mariano Vallejo. Today the plaza is a National Historic Landmark and still serves as the town’s focal point. The eight-acre park is surrounded by many historical buildings and sites, including: the Mission San Francisco Solano de Sonoma, the Sonoma Barracks (or Presidio of Sonoma), Site of the Bear Flag Revolt, and General Vallejo's home Lachryma Montis.