Being number two is not much better than coming in last. How many people know that the second-tallest mountain in the world is the dismally-named “K-2?” Quite a few, no doubt, but everybody, literally everybody, knows that Mount Everest is the tallest. But do you know what the tallest building in the world is? If you don’t, then you should, because it’s something truly incredible. It’s called “Burj-Khalifa,” it’s in Dubai, UAE, and at 2717ft/828mt, is more than twice as tall
