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<p>Did you know the tallest building in the world is a skyscraper in Dubai called the Burj Khalifa? It has 163 floors and weighs as much as 100,000 elephants! But how can the Earth even support such a huge building?! Why doesn’t the ground just collapse underneath it? We asked geologist Rónadh Cox to help us find the answer.</p><br><p>Got a question that’s <em>weighing heavily</em> on your mind? Send it to us at <a href="https://www.brainson.org/contact">BrainsOn.org/contact</a> and we’ll help <em>build you up</em> with a great answer!</p><p>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.</p>