91.22.Z - Historical site and monument activities
72.10.Z - Research and experimental development on natural sciences and engineering
72.19.Z - Other research and experimental development on natural sciences and engineering
72.20.Z - Research and experimental development on social sciences and humanities
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
74.99.Z - All other professional, scientific and technical activities n.e.c.
90.01.Z - Performing arts activities
90.02.Z - Support activities to performing arts
90.03.Z - Artistic creation activities
90.20.C - Other activities related to the staging of artistic performances
90.39.Z - Other support activities to arts and performing arts
91.30.Z - Conservation, restoration and other support activities for cultural heritage
