The current tallest building in the world is the Burj Khalifa, located in Dubai, United Arab Emirates.
It stands at a height of 828 meters (2,716 feet) tall and has 163 floors.
The building took six years to construct and was completed in 2010.
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Famous Inventors and Their Inventions
Nikola Tesla, a Serbian-American inventor, is credited with the invention of the AC (alternating current) electrical system.
Thomas Edison, an American inventor, is credited with the invention of the light bulb.
Alexander Graham Bell, a Scottish-born American inventor, is credited with the invention of the telephone.
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Largest Deserts in the World
The Sahara Desert, located in Africa, is the largest hot desert in the world and covers an area of 9.2 million square kilometers (3.6 million square miles).
The Antarctic Desert, located in Antarctica, is the largest cold desert in the world and covers an area of 14 million square kilometers (5.4 million square miles).
The Arabian Desert, located in the Middle East, is the third-largest desert in the world and covers an area of 2.33 million square kilometers (900,000 square miles).