Bank of England Museum

With map in hand I left ToL in search of the Bank of England Museum.  I headed north.  Along the way I found a House of Farrell -- not the one I needed however.  I found the Royal Exchange -- swanky!  There was a random statue to Reuters.  Yes, there is a man behind the name, behind the news.  And I even found the BANK.  But I could not find the entrance to the bloody museum!  UgH..
I walked some more. Gave up. Headed back to St. Pauls.  You see the tube stations really aren't that far from one another so I figured I would walk back to where I started.