As for me I'm afraid of heights.

Heights are perhaps the most frequent topic of my rare nightmares. And the most frequent plot of such nightmare dreams: I suddenly discover myself that I am in the empty window in the wall of an almost completely destroyed building from which one wall survived and remained in an upright position. And I am in that empty window hole looking around in horror and I see far from myself somewhere below the ground and I really do not know what to do and how to escape!