Where was Secret of the Black Birds filmed?

1983 film by Vadim Derbenyov

Secret of the Black Birds (1983) was filmed in Vasalemma manor, Keila-Joa manor and International Trade Center, Moscow, 3 places named in its Russian Wikipedia’s Место съёмок section, in Estonia, Russia. 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