Burj KhalifaThe Burj Khalifa (known as the Burj Dubai prior to its inauguration in 2010) is a skyscraper in Dubai, United Arab Emirates. It is the world's tallest building. With a total height of 829.8 m (2,722 ft, or just over half a mile) and a roof height (excluding antenna, but including a 242.6 m spire) of , the Burj Khalifa has been the tallest structure and building in the world since its topping out in 2009, supplanting Taipei 101, the previous holder of that status.
Shanghai TowerShanghai Tower () is a 128-story, megatall skyscraper in Lujiazui, Pudong, Shanghai. It is the tallest building in China and the world's third-tallest building by height to architectural top. It is the tallest and largest LEED Platinum certified building in the world since 2015. It shares the record (along with the Ping An Finance Center) of having the world's highest observation deck within a building or structure at 562 m. It had the world's second-fastest elevators at a top speed of until 2017, when it was surpassed by the Guangzhou CTF Finance Center, with its top speed of .
MelbourneMelbourne (ˈmɛlbərn ; Boonwurrung/Woiwurrung: Narrm or Naarm) is the capital of the Australian state of Victoria, and the second-most populous city in Australia (although the most populous in its contiguous urban area). Its name generally refers to a metropolitan area known as Greater Melbourne, comprising an urban agglomeration of 31 local municipalities, although the name is also used specifically for the local municipality of City of Melbourne based around its central business area.
DubaiDubai (duːˈbaɪ, ; دبي, dʊˈbajj, dəˈbaj) is the most populous city in the United Arab Emirates (UAE) and the capital of the Emirate of Dubai, the most populated of the 7 emirates of the United Arab Emirates. Established in the 19th century as a small fishing village, Dubai grew into a regional trading hub from the early 20th century and grew rapidly in the late 20th and early 21st century with a focus on tourism and luxury, having the second most five-star hotels in the world, and the tallest building in the world, the Burj Khalifa, which is tall.
Willis TowerThe Willis Tower (originally the Sears Tower) is a 110-story, skyscraper in the Loop community area of Chicago in Illinois, United States. Designed by architect Bruce Graham and engineer Fazlur Rahman Khan of Skidmore, Owings & Merrill (SOM), it opened in 1973 as the world's tallest building, a title that it held for nearly 25 years. It is the third-tallest building in the Western Hemisphere, as well as the 23rd-tallest in the world. Each year, more than 1.
SkyscraperA skyscraper is a tall, continuously habitable building having multiple floors. Modern sources currently define skyscrapers as being at least or in height, though there is no universally accepted definition, other than being very tall high-rise buildings. Historically, the term first referred to buildings with between 10 and 20 stories when these types of buildings began to be constructed in the 1880s. Skyscrapers may host offices, hotels, residential spaces, and retail spaces.
