Next in our 21st-Century Architecture: 25 Years 25 Buildings series we examine SOM's Burj Khalifa – the most significant building completed in 2010 and still the world's tallest skyscraper.

Have you ever wondered how the world’s tallest building, the Burj Khalifa, appears from space? While it might not be a question that crosses your mind often, a NASA astronaut has provided the ...