Part of the nonfiction Orca Timeline series, with photographs and illustrations throughout. This book explores why and how people have constructed taller and taller buildings over the course of human history.|People have been building tall buildings for thousands of years. Castle walls keep people safe. Skyscrapers provide housing for a lot of people. Why Humans Build Up asks why and how we build higher and higher, and whether tall buildings can be a part of our sustainable future.
關鍵字詞： history of fun | recreation | leisure activities | amusement | happiness | play | board games | sport | good times | art