How was the Burj Khalifa built as the world's tallest building? 😱 | Impossible Engineering

POV: A day building the Hoover Dam — Black Canyon, Nevada, 1932. High scalers worked on ropes 500 feet above the Colorado River with 44-pound jackhammers, in hard hats they invented themselves by dipping cloth caps in tar. Best-paid men on the river: $5.60 a day when the country was broke. There was no dam yet — just the canyon, and the river that didn't know what was coming. Most-requested job in the comments 🙏 Which build next — Roman aqueduct 🏛️ or Venice's gondola workshops 🛶? 👇 #hooverd

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