Sears Tower is a high-rise building, the largest in engineering and architecture.But it architects and engineers also invented a technology that will be able to build a high-rise building to be highest in the world.William LeMessuries, engineers have designed a high-rise building structure that contains the height of the Sears Tower twice, and architect Robert Sobel agree with William LeMessuries with existing technologies can create buildings of up to 500 layers.
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