Note that this criterion fits not only high-rises but some other tall structures, such as towers.
The word skyscraper often carries a connotation of pride and achievement.
Nasir Khusraw in the early 11th century described some of them rising up to 14 stories, with roof gardens on the top floor complete with ox-drawn water wheels for irrigating them.
An early modern example of high-rise housing was in 17th-century Edinburgh, Scotland, where a defensive city wall defined the boundaries of the city.
Another crucial development was the use of a steel frame instead of stone or brick, otherwise the walls on the lower floors on a tall building would be too thick to be practical.An early development in this area was Oriel Chambers in Liverpool, England. While its height is not considered very impressive today, it was at that time.The building of tall buildings in the 1880s gave the skyscraper its first architectural movement the Chicago School, which developed what has been called the Commercial Style.However, skyscrapers can have curtain walls that mimic conventional walls with a small surface area of windows.Modern skyscrapers often have a tubular structure, and are designed to act like a hollow cylinder to resist wind, seismic, and other lateral loads.