Los Angeles County Arboretum and Botanic Garden
The Los Angeles County Arboretum and Botanic Garden, 127 acres (51.4 ha), is an arboretum, botanical garden, and historical site nestled into hills near the San Gabriel Mountains in Arcadia, California, United States. Open daily, it only closes on Christmas Day.
Source: Wikipedia — Los Angeles County Arboretum and Botanic Garden (CC BY-SA 4.0)