Skyscrapers:
At the end of the 19th century, very tall buildings were starting to be built. Building structures high instead of wide save space, because they didn't take up as much ground. Skyscrapers could be built because the internal skeleton that could hold the weight of a building was developed.
Louis Sullivan designed the 10 story Wainwright Building in St. Louis, Missouri. It was built between 1890 and 1991. The Wainwright Building is one the first skyscrapers built in the world.
Skyscrapers fixed the problem of building on limited and expensive land. Today, the Willis Tower (Sears Tower) in Chicago is the tallest building in the United States.
I think skyscrapers are very important, because they allow you to build up, rather than taking up more land. You don't have to pay for as much land that way, and it leaves space for other things to be built. It's also cool how much you can see from the top of a skyscraper.
Sources:
Whatever the name of the book is
Comments
A bit brief overall but good.