Okay, cheating here a bit: that's not the Bridge of Sighs you see in the photo below (just beneath the billboard).* It's the bridge from which you can see Bridge of Sighs--the place where you stand to take in one of the world's most famously romantic views. Which is now framed by massive ads for diamond jewelry--because commodified romance is so much more alluring than the natural variety.
Happy Valentine's Day!
* Somewhere I have a photo of the view toward the Bridge of Sighs, but I can't find it just now. It basically looks like this.