Bank of England Museum
The Bank of England has its very own Museum - and it's free!
Open weekdays from 10am - 5pm but Closed weekends (& Bank Holidays of course) the museum relates the history of the Bank, and you can see the original Royal Charter.
Interactive displays provide the visitor with a 'hands-on' experience; and there's a virtual tour that allows you to see inside the Bank's vaults.
You can even get your hands on a real Gold Bar as well as examine those security features in bank notes.