The tallest building in the world, as of 2022, is the Burj Khalifa located in Dubai.
This building stands 2,717 feet tall and has 162 levels. The building reached record height during construction in 2007 and its highest point upon completion, before opening in January 2010. This building has a hexagonal core and three wings that were designed as a type of structural buttress system.
This building, known as an upright city, contains a hotel, apartments, corporate offices, stores, restaurants, gyms, and more. The elevators in the building are some of the fastest elevators in operation. They move at 10 Meters or Approximately 33 feet per second. The restaurant here is also the highest restaurant in the world. The building even has its own scent. A fragrance was selected and is piped in through the ventilation system for guests.
Skidmore, Owen's, and Merrill a Chicago-based Architecture firm designed the building.
"The Burj Khalifa is specially designed to conquer the wind, a goal that becomes more and more important as altitude increases. The building rises to the heavens in several separate stalks, which top out unevenly around the central spire. This somewhat odd-looking design deflects the wind around the structure and prevents it from forming organized whirlpools of air current, or vortices, that would rock the tower from side to side and could even damage the building. Even with this strategic design, the Burj Khalifa will still sway slowly back and forth by about 2 meters at the very top."
The Shape of the building is based on the spider lily flower. You can see the similarities in the images below.
An even taller building by the same architect, Adrian Smith + Gordon Gill Architecture, was under construction in Sadi Arabia until 2020. The construction was halted and, as of now, there are no plans to resume. This proposed building is the Jeddah Tower and is planned to stand 3,281 feet tall. Pictures below are renderings of the proposed building.
Only one third of the building is built at this time. If this project continues until completion it will overtake the Burj Kalifa as the tallest building in the world.