You can connect to the server's PostgreSQL database and create a Tableau report to display this information.
Details to configure and connect are here: Connecting to the Tableau Server Database
Good tables to link for this task are:
Start with this: Who has seen this view? Workbook and View hits report.
It will get you going. You should be able to get the Site as well...I don't remember if fields are hidden so check that they aren't if you don't see what you're looking for.
A solution like Toby's is a great turnkey approach.
If you feel like pursuing on your own, the info can be gotten through the "hist" tables in Postgres (using the connection doc that Harvey linked to.
I made a Tableau Data Source (tds file) called "histmonster" that has (I think) all the joins. (I originally did not see myself sending the file around, so it is named because the JOINs in these hist tables were making the connection screen increasingly monstrous.) It could be used as a starting point for your own research. Data dictionary at Workgroups Database Data Dictionary.