ɹˌɛtɹoʊspˈɛktɪv ɛksɪbˈɪʃənz ʌv kəstˈɑːbiz pˈeɪntɪŋz hɐvbɪn hˈɛld æt ðə mˌɪtsuːkˈoʊʃi mjuːzˈiəm ɪn tˈoʊkɪˌoʊ nˈaɪntiːnhˈʌndɹɪd nˈaɪnti tˈuː ænd ðɪ ˈɑːɹt mjuːzˈiəm ʌv ɛstˈoʊniə ɪn tˈælɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪnti ˈeɪt.
Retrospective exhibitions of Kostabi's paintings have been held at the Mitsukoshi Museum in Tokyo (1992) and the Art Museum of Estonia in Tallinn (1998).