Click on image to see larger version.
acrophobia design poster
From the description:
Acrophobia, an extreme or irrational fear of heights. It belongs to a category of specific phobias, called space and motion discomfort that share both similar etiology and options for treatment. Acrophobia can be dangerous, as sufferers can experience a panic attack in a high place and become too agitated to get themselves down safely. "Vertigo" is often used, incorrectly, to describe the fear of heights, but it is more accurately described as a spinning sensation, which may be caused by looking down from a high place, as well as by some other stimuli.