In the construction of this building 5,200 tons of structural steel were used, the equivalent necessary to build a modern twenty-story skyscraper. 佚名.神奇的知识之书.
Electric lighting was not invented to equip skyscrapers and the huge apartment buildings of today. 佚名.神奇的知识之书.
Not only are passengers conveyed up and down by electric elevators in skyscrapers, but the buildings themselves are erected by means of electricity. 佚名.神奇的知识之书.