This was just a lucky shot. We were on the spot to get the citiscape shot, and were already slowly packing our stuff, when the moon rose from behind the buildings. So of course we had to stay longer and get few photos of it :)
This is a HDR from 5 exposures created in Oloneo Photoengine, then blended with original exposures in Photoshop. The moon is form an underexposed version of the -2Ev exposure (it was really bright :))