You can't get this list specifically, but you can see the top sites they are visiting. Under Network-Wide/General you need to make sure you have "Traffic analysis" set to "Detailed: collect destination host names". Then from Network-wide/Clients, click on the client. On the right hand side is a pie chart and under that is "show details". Click on "show details". Now you will see a list of the top things they have accessed.
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