Abseil down a building

“So while standing on the edge of a skyscraper, I am told by these people to put my body in an “L” shape, begin to lower myself and essentially start to sit on the sky. My body was telling me “hell no.” After trying for several minutes to actually get my body to do this, I finally took a step backwards and started to walk my legs slowly down the side of the building while feeding cord into the lever. The first few stories were awful. I was shaking and refused to look around. But after I’d gotten into a bit of a flow (I was still going slower than the people around me) I forced myself to look. To the left was Billy Penn atop City Hall, the right was a breathtaking view of the Parkway I’d never seen before. And below, a bunch of people waiting to pull me to safety.”

“Then it starts getting very serious. Back down to the ground floor and then up in the lift... and up... and up... "30th Floor" says the cheery lift auto-voice. "Oh s--t" says Harry. Then it's up another 2 or 3 floors on the stairs because, 30 floors up just isn't high enough. I was starting to feel sick at this point and studiously trying to avoid looking out of the windows and failing even that. [...] Onto the cheery little scaffolding platform. The first rope is clipped on but in order to get onto the rope that you actually feed through there is no choice but to walk (backwards, and very slow & reluctantly) right to the edge and grab hold of the scaffold pole right on the outer edge. Yes, Harry, you really do have to walk right to the edge of 450ft drop... I was hanging on for grim death! Did I mention I hate heights?”