Comment by defrost

In other tower climbing events, some things cannot be free climbed (too smooth, fingers aren't made for window cleaning tracks, etc).

The 1988 ascent of the Sydney Centrepoint was a technical climb with custom jumars for both the cables and the window tracks and a fun challenge for all, both the scouting, the climb, and the filming.

Originally titled The Only Building I Ever Wanted To Climb, later released as A Spire, there's a documentary film that follows a climb at night of "only" 1,000 feet.

... with a massive overhang.

* https://en.wikipedia.org/wiki/Sydney_Tower

* https://www.youtube.com/watch?v=qch1Gd8VLK0