The photograph was taken from the Brooklyn Bridge Park as the moon sets over the Manhattan skyline and the Brooklyn Bridge. The sun rises from the opposite direction shining onto downtown Manhattan and the East River. Construction continues on One World Trade Center (Freedom Tower) which is lit Red, White, and Blue (blue and white can be seen in photo).
One World Trade Center (Freedom Tower) is scheduled to be completed in 2013 and it will be the tallest building in the United States, with its radio antenna reaching a symbolic height of 1,776 feet in reference to the year of American independence. (Source- Wikipedia One World Trade Center).