London was recognised as the most interconnected global city in 2017 and has an Alpha++ status to mark this. However, there are different ideas on how to work out which city is 'the most' multicultural'.  Research by BBC's More Or Less team suggested that based on key indicators Toronto in Canada beats London for diversity.  You can listen to that show here.  However you spin it London has 300 world languages spoken on its streets and over 200 distinct communities.