I'm flying a low-level route over a city I've never seen

I'm in the back seat of an old Phantom, map on my knee, no GPS. The rooftops below are all different shades of rust and tile. I'm supposed to turn at a water tower that isn't there. The navigator in front keeps saying 'trust the landmarks' but I don't recognise any of them. I wake up with my hands in the shape of a pencil.