I share an aversion with Tam. Heights freak me out a little. In college, to get over my dislike of heights and to make some extra money, I worked on a bungee tower in a local tourist trap. Me getting over it worked, for a little while. Then, a lack of doing it every day, it came back. A few years back while visiting Toronto, I went up the top of the CN Tower. It made me mildly uncomfortable and I was hugging all the walls. But doing something like this, I’d probably flip my lid.
And I know, it’s completely irrational. But my body seems to react poorly to not being on the ground. I don’t even like the Sunsphere.