In which country is the city of Timbuktu?

In which country is the city of Johannesburg? In which country is the city of Cape Town? In which country is the city of Durban? In which country is the city of Mombasa? In which country is the city of Dar es Salaam? In which country is the city of Abidjan? In which country is the city of Dubai? In which country is the city of Mecca?