This silly tabloid trend really irks me.
Shoes/boots with fairly standard heel heights (barely 4 inches in some cases), being described as "Sky high heels", "Skyscraper heels", "Vertiginous heels" or other stupid term.
They are ordinary heels, available to all, found in most high street stores, nothing extreme or noteworthy about them to be honest. Here's a recent example:-
https://www.dailymail.co.uk/tvshowbiz/article-6661955/Rachel-McCord-traipses-nude-lingerie-sky-high-heels-outdoor-photo-shoot-LA.html
I suppose its a form of Clickbait.