They're cities often visited by people from all over the world. We know them for their landmarks, their accents or their history. But, do we know their flags?
Images of the iconic flags such as the Union Jack, or Stars and Stripes are instantly recognisable. They're flown in times of victory and defeat, happiness and sadness.
Take this quiz to see how well you know the flags of some of the most famous and familiar cities of the world.
How well did you go? Share your score and your thoughts on our Newshub Travel Tips Facebook group.