12 tallest buildings in the world

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First : what building is this in Dubai, this is a the world's highest

it is Burj Khalifa, about 829.8 m . high

Second : it is the second tallest building in the world, it is located in China

it is Shanghai Tower with an estimated height of about 632 m

Three : it's a building in Saudi Arabia, it's the 3rd tallest building in the world

it's the Abraj Al-Bait Tower, it's about 601 meters high

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