but few were ever more than 15 eters tall.
Almost all of these buildings took decades or even hundreds of years to complete. However the invention of steek frames in the late 1800s meant that the walls did not carry the weight of a structure. deveropment meant that suddenly much taller buildings were possible, and they could be built quickly. Skyscrapers had been born, and they were about to change the the face of our cities.