Voomed - smog eating skyscraper

This Eco-Friendly Three-Mile High Skyscraper Is A Futuristic Smog-Eater With A Self-Cleaning Coating At present the tallest skyscraper on the planet is the Burj Khalifa in Dubai which stands at just over half a mile tall (and that's over twice the height of the Empire State building). But skyscrapers...