Cultural District can be urban plaza, lawn space etc. Cultural distrist is a destination for a variety of users.
References
Lawn on D, Boston, USA
798 Arts District, Beijing, China
Chicago Riverwalk, Chicago, USA
https://www.americansforthearts.org/by-program/reports-and-data/toolkits/national-cultural-districts-exchange/cultural-districts-map-0
https://www.americansforthearts.org/by-program/reports-and-data/toolkits/national-cultural-districts-exchange/cultural-districts-map-0