Hold tight. This new video shows Vince Reffet and Fred Fugen break a new World Record: by climbing to the very top of Burj Khalifa—the world's tallest building—and then BASE jumping off it.

The Burj Khalifa stands 2,722 ft tall above the Dubai cityscape it dominates, providing a tantalizing—and terrifying—challenge for BASE jumpers. Now, for the first time, Skydive Dubai's Vince Reffet and Fred Fugen have climbed to its very tip and jumped from it. (Along with their camera guy, of course. Props to that camera guy.)

It's not the first time people have jumped from the Burj Khalifa, but in the past it's been from lower down the building. The jump from the tip of the building was made possible with a special platform, measuring 3 feet by 9 feet, constructed specially for the attempt. Building that was in itself a massive undertaking, taking three days to complete and raising suspicions among tourists along the way.

For comparison, the terrifying night-time leap from One World Trade saw BASE jumpers Marko Markovich, Kyle Hartwell, Andrew Rossig, and James Brady descend a mere 1,792 ft. The new Dubai jump nets Reffet and Fugen the Guinness World Record Title of the Highest Base Jump from the Tallest Building, which they richly deserve. Now we just need China to hurry up and build Sky City. [YouTube, Arabian GazetteThanks, Gerald!]