Perspective: the Empire State Building is 1,250’ tall, Chicago’s Willis Tower is 1,451’, and NYC’s upcoming One World Trade Center (tallest building in the Western Hemisphere upon completion) is 1,776’. But Thornton Tomasetti is no stranger to mega skyscrapers—it was the structural engineer for three of the world’s highest buildings: Malaysia’s Petronas Towers, Taiwan’s Taipei 101 (which Bisnow visited last year), and China’s Shanghai Tower, under construction. (Maybe next time y'all can mix things up a bit and build a tunnel.)