Not that I know off, all they have to do is design them so that the people living in them will be safe.
China with 21 completed have the most number of super-tall skyscrapers over 300meters in height. The country is also constructing another 14 300 meter plus currently.
Yes The entire frame structure for most skyscrapers is built from iron beams. Even if the structure were to use all steel, steel itself is made from iron and the term iron beam is still typically used. There would be no skyscrapers without iron, freestanding concrete simply collapses in on itself above a certain height and requires a framework to reach any height tall enough to qualify as a skyscraper.
It really depends on what building you are talking about. It's like asking how tall are skyscrapers. They vary in height.
It has 22 skyscrapers
There is no standard collective noun for skyscrapers, in which case a noun that suits the situation can function as a collective noun; for example, a landscape of skyscrapers, a cluster of skyscrapers, a glitter of skyscrapers, etc.
3 skyscrapers in philadelphia
39 Skyscrapers.
Stalexport Skyscrapers was created in 1981.
Skyscrapers has three syllables.
skyscrapers
elevators and skyscrapers
" Skyscrapers make a shadow is you are under one".