Source- Business Upside
The Sears Tower was replaced in March 1996 by the Petronas Towers in Kuala Lumpur, Malaysia, which broke the record for the world's tallest structure. Stainless steel pinnacles measuring 73.5 meters (241 feet) were installed atop the 88-story towers, raising them to a height of 451.9 meters (1,482 feet 8 inches). With a massive 508 meters (1,666 feet), Taipei 101, also known as the Taipei Financial Centre of Taiwan, won the championship in 2003. Roughly a year later, work on the Burj Khalifa began. It was going to be a part of the new flagship project Downtown Dubai, which would take up 2 km (490 acres) at the "First Interchange," near Dubai's premier business district.
Designing and constructing the tallest building of the world:
At the time, in response to inquiries from people all over the world about whether it was possible to build a skyscraper that high, the Burj was supposed to be "just" 518 meters tall, or 10 meters taller than the Taipei. It grew by an incredible 310 meters during the design phase, or roughly the height of the French Eiffel Tower. On September 21, 2004, construction began, and the building's exterior was completed on October 1, 2009. The weather is usually more consistent in taller structures. Nonetheless, the Burj Khalifa's intricate Y-shaped cross-section was intended to lessen the impacts of wind. It was constructed in the neo-futurist style.