The Burj Khalifa of Dubai is the tallest building in the world and the Middle East at 828m. It also has the most number of floors in the world at 163 floors.
Naturally, compared to the Burj Khalifa, the Abraj Al Bait of Saudi Arabia seems to be at a distant second at 601m. Yet, we must know that the Abraj Al Bait is nevetheless the third tallest building in the world.
At third, is Marina 101 of Dubai at 425m. It is also worth noting that this landscape will soon change in the coming 2-3 years. The upcoming Jeddah Tower of Jeddah, Saudi Arabia, due to complete by 2020, will reach 1,000m in height and will be the tallest building in the world and the Middle East.