The five most-visited cities in the world

If you had to name the global cities which get the largest number of visitors each year, you'd probably think it wasn't too hard.

You might say New York, Tokyo or Hong Kong - maybe even Barcelona - but surprisingly none of those feature in the list of the top five most-visited cities of 2017 put together by Mastercard.

Find out which DID make the list, and how much money was spent at each in the video above.