On top of some ruins of an ancient tower on top of a mountain with an epic staff of lightning, like the opening scene of LOTR The Two Towers with Gandalf Vs. Balrog
What could be more climatic than battling one of these beasts at the peak of a mountain? Knowing that if you make one wrong move you're just as likely to fall to your death as you are to get burned to a crisp if you hold still. I suspect we'd have to use the dragon shouts as a form of defense causing the dragon to stagger before they get a chance to land a successful attack! On top of everything else, think of the fear you'd experience seeing it pass overhead only to disappear into the clouds and attack from an unknown angle... :ahhh: