1.Why couldn’t people build really tall buildings in the past? 2 When could people start building skyscrapers? 3 How did the invention of the elevator change the history of buildings? 4 Why did people want to build skyscrapers in cities? 5 Why are tall buildings called ‘skyscrapers’? 6 How fast did the Empire State Building grow? 7 What can you find in the Triumph of Astana in Kazakhstan?

valerija1234    2   13.04.2020 12:48    1