Once upon a time (not so long ago), the Burj Khalifa was just concrete under construction - a very different sight from today ...

From the Burj Khalifa in Dubai to Big Ben in London, the following tourist landmarks are some of the most expensive places to ...

It’s also the reason the Burj Khalifa started coming together so fast. Less than a year after Emaar had selected Smith and SOM to design the supertall structure, they’d broken ground.