Burj Khalifa..  2,717 feet tall.  The tallest THING ever created by mankind.  In all of our existence, this is it.  It's so hard to believe this building actually exists.  Every picture of it looks like one of those CGI created images.  It's monstrous.  But it's also the first of those "futuristic cities" we see in a lot of really beautiful artwork.. like this:

And yes, that's Illium from Mass Effect 2.  Nobody creates a realistic, futuristic world better than the people who created that game.  <3