The Vatican City (1)
Luxembourg (1)
Monaco (1 - not sure if its even classified as a city)
San Marino (1 - see above)
Malta is the smallest and least populous of the European Union countries.
Vatican City
Montenegro.
All European countries are industrialized.
Spain was least involved in the slave trade.
Albania
K
Finland
No; most large European cities have at least one.
Montenegro is the least populated Eastern European country.
romania
Vatican City is the least populated Western (or any) European country.