Where was Return from Witch Mountain filmed?

1978 film by John Hough

Return from Witch Mountain (1978) was filmed in Los Angeles, Pasadena, Fillmore, San Fernando Valley, Sunset Boulevard, Los Angeles County Museum of Art and 7 more places, 13 places named in its Wikipedia article, in the United States. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data