Where is the European Grand Prix held? | Do you want to return the location, country or latitude and longitude? | Country please.
SELECT distinct T2.country FROM races AS T1 JOIN circuits AS T2 ON T1.circuitid  =  T2.circuitid WHERE T1.name  =  'European Grand Prix'
European Grand Prix location refers to country; DISTINCT is used to return unique values; JOIN is used to combine rows from two or more tables based on a related column between them;