The Burj Khalifa is the tallest building and structure in the world, as well as the most multi-storey. It has the longest spire in the world, and has also set an endless number of records, among which is the highest structure in the history of mankind, the highest located last floor, the highest height of injection of mixture for any structures, the highest located restaurant, etc. It houses hotels, apartments, offices, shopping malls and other facilities. The ledged shape of the building resembles a stalagmite. The cost of the skyscraper is $ 1.5 billion.

History: In 2004, the construction of the Burj Khalifa began. Since 2007, continuing to grow, it has already been the tallest building in the world. Construction proceeded at a rate of one or two floors per week. The building reached its target height in 2009, and in 2010 it was built, inaugurated during a ceremony and put into operation.

Interesting facts:
- Up to 12,000 workers worked on the construction site every day. It took about 320 thousand m3 of concrete and more than 60 thousand tons of steel reinforcement to create it.
- The name of the building was dedicated to the President of the United Arab Emirates, Sheikh Khalifa bin Zayed Al Nahyan.
-The main idea of the skyscraper project was an architectural imitation of the hymenocallis flower, which is also called the spider lily. The wings of the tower extend from its core like petals.
-During construction, the concrete mixture was laid only at night, and ice was added to the solution. A special brand of concrete has been developed especially for Burj Khalifa, which can withstand temperatures up to +50 °C.
-In the form of a stalagmite, the building was built in order to reduce the effect of swaying from the wind.
- The elevators in Burj Khalifa are the longest in the world.
-Visiting the observation deck is not cheap - it will cost you $ 40, not to mention the cost of hotel rooms... It's better for you not to know about the queues at the observation deck at all. In 2019, according to Uber, it was the most visited attraction in the world.

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