That's the Burj Khalifa. For New Years, Dubai had fireworks explode all around the building which sorta made it look like a super electric and ridiculously tall Christmas tree. Other New Year's celebrations around the world looked just as awesome.
This is Sydney:
The pictures are both from The Big Picture, the awesome site that shows us shots of places we would only dream of going. Their latest set lets you see how the world—from Australia and Austria to Tokyo and New York and everything in between—celebrates New Year's Eve. I love a new year. [The Big Picture]