The Burj Khalifa is the tallest building in the world at 2,722 ft. It is one of the most impressive buildings ever, in my opinion. Both in terms of height and appearance. Its presence is so commanding and attractive at the same time. The whole city of Dubai seems to compliment its figure. I have never been to Dubai to witness it in person but I definitely want to one day. The glass structure is so elegant and artful, yet so simple. The simple modern style is at its peak with this building and is truly a piece of art.