Last week, we promised skyscrapers, extreme winds and why stopping a building from moving is not actually the goal. So we thought we should start with the obvious one. Burj Khalifa stands 828 metres above Dubai, but the interesting engineering starts more than 50 metres below it. Before construction moved skyward, engineers tested foundation piles under loads of up to 6,000 tonnes. The completed foundation would eventually rely on 192 reinforced concrete piles beneath a massi