The Empire State Building - located in the heart of New York. The mother of all skyscrapers and symbol of the American dream. With an incredible height of four hundred and forty-three metres to the top it held the title of the tallest building in the world for more than forty years! Constructed with more than seven hundred thirty tons of steel and aluminium and ten million bricks. A unique workplace designed for over twenty thousand people and a true legend. But what happens when this legend meets a modern-day icon? The Empire State Building faces the Burj Khalifa. The world's tallest skyscraper and the tallest building on earth. At eight hundred and twenty-eight metres, the building breaks every record - by a huge margin. The iconic building in Dubai literally scrapes the skies. Built using over three hundred and thirty thousand cubic metres of concrete and one hundred and three thousand square metres of glass. The Burj Khalifa is more like a vertical city, than just a skyscraper. A contest of superlatives - Empire State Building versus Burj Khalifa! Two opponents. Three categories. And lots of surprises. Which skyscraper has revolutionised engineering? Which mega building offers the most technical innovation? And which skyscraper will stand for eternity?