Is there a future for high-rise?
For a time, the tragic events of 9/11 put a question mark over the future of high-rise buildings. With terrorism invading our lives, would anyone want to live or work in them?
9/11 also set engineers three new and important challenges - to find out how the twin towers' design helped so many people escape, how it ultimately failed to protect the victims, and how to incorporate both lessons into the skyscrapers of the future.
Now, in London and New York, the first generation of ultra-safe, super-tall towers are rising.
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