A risky move like this would normally require a stunt double, but that's actually Tom ... the Burj Khalifa in Dubai is the world's tallest building. So it was only a matter of time before Cruise ...

Although we don't recommend experiencing it the way Tom Cruise did in "Mission: Impossible - Ghost Protocol," Burj Khalifa is a crucial item on any Dubai agenda. Rising 2,716.5 feet above the city ...