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

A duplex atop Dubai's Burj Khalifa is on the market for $49 million. Its agent said he's surprised how many Americans have expressed interest.

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.