Thousand Oaks, commonly referred to as T.O. by residents, is a city in southeastern Ventura County, California, in the United States. It was named after the many oak trees that grace the area, and the city seal is adorned with an oak. The city forms the most populated part of a regional area called the Conejo Valley, which includes Thousand Oaks proper, Newbury Park, Westlake Village, Agoura Hills, and Oak Park. Conejo Valley Botanical Garden, Thousand Oaks Civic Arts Center, American Radio Archive, The Oaks Shopping Center and Stagecoach Inn are some other places of interest