Dubai Renames World’s Tallest Tower for Abu Dhabi Sheik

It took five years and more than $1.5 billion to build the Burj Dubai which, at 2,717 feet, becomes the world’s tallest tower. And its long-awaited opening earlier this month came with a surprise—the renaming of the tower as the Burj Khalifa, in honor of Sheik Khalifa bin Zayed Al Nahyan, the Abu Dhabi leader who gave Dubai billions of dollars to help its neighboring emirate out of a crushing debt crisis late last year. The sheik also is president of the United Arab Emirates.