Do skyscrapers really sway back and forth?

How tall are the tallest skyscrapers? What were some of the earliest tall structures?Does time go faster at the top of a skyscraper? For free home activities sign-up at www.WhoSmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.