I stand corrected, thanks to Nick, who commented below. I had originally written that this was Emperor Trajan, but it is is arch-enemy Decebalus, whom you can read about right here. I'd written about GTrajan's bridge that was and will be again previously.
And, although I visited this place a while back, you have my friend Nena to thank for this photo. You can see another one of her beautiful photos right here.
See more bridges at Louis La Vache's SUNDAY BRIDGES.