There is still one of which you never speak.'<br /><br />Marco Polo bowed his head.<br /><br />'Venice,' the Khan said.<br /><br />Marco smiled. 'What else do you believe I have been talking to you about?'<br /><br />The emperor did not turn a hair. 'And yet I have never heard you mention that name.'<br /><br />And Polo said: 'Every time I describe a city I am saying something about Venice.