Search “smokestack unicycle” to see video of some crazy stuff atop an 840-foot smokestack in Romania. I have an OK head for heights, but I don’t think I could watch it again.
Just watched it. HOLY SMOKES!
There’s also a video of a guy climbing a 700 foot radio tower to change the light bulb. It’s breathtaking.
I used to get a little queasy in atrium hotels when looking over the ten-story railing.
I went skydiving a couple years ago and that queasiness has disappeared. Two weeks ago, I drove a long shelf road in Colorado. 1 lane, dirt, two way traffic, no guardrails, 1000 foot cliff a couple feet away. No problem.