Heritage Square Museum is a living history and open air architecture museum located beside the Arroyo Seco Parkway in the Montecito Heights neighborhood of Los Angeles, California, in the southern Arroyo Seco area. The living history museum shows the story of development in Southern California through historical architectural examples.
The museum focuses on interpreting the years 1850 to 1950, a century of unprecedented growth in Los Angeles. Volunteer interpreters give thorough tours that incorporate the history, architecture, and culture of the region. Other specialized living history events, lectures, and items of historical interest are given on a periodic basis.