According to a popular definition, to be considered a “skyscraper” a building needs to be close to or even exceeding 500 feet — or over 40 floors. This was not always the case, however. Back in 1880, the definition of skyscraper was only 10 to 20 floors. As of this writing (2020 — and since 2008), the tallest building in the world is called Burj Khalifa — a skyscraper in the city of Dubai in the Middle East which stands 2717 feet high. However, at least 2 more buildings in the Middle East are either under construction or planned, each being over 4000 feet tall!