At willekes suggestion I’ll take the thoughts I’d expressed in some comments and turn them into an answer. My preference is that:
Such questions should not be allowed
The help section already says, under “How do I ask a good question?”
Make it relevant to others
We like to help as many people at a time as we can. Make it clear how your question is relevant to more people than just you, and more of us will be interested in your question and willing to look into it.
These “here is a photograph, where was it taken?” questions in my experience don’t, and arguably can’t fulfil that. Even the best examples, which show a reasonably good quality image with a reasonable amount of helpful context to make the image reasonably identifiable (like this, this, or this, for example), are extremely unlikely to help anybody other than the person who asked. Even if somebody else finds the same photograph, or another photo of the same place, and wants to find out where it is, there’s no practical way for them to discover the question.
Take a look at this - it’s the list of all questions tagged identify-this. I haven’t played any games to just show or to prioritise the bad ones, that’s just all of them, sorted by date. And yet: it’s also a list of some of the absolute worst questions I’ve ever seen on any stack exchange site, with only a tiny fraction of exceptions. Even those exceptions, while more interesting and better written than the majority, fail the “relevant to more than just OP test”. Just banning the whole category of questions would, in my opinion, enable us to quickly get rid of a whole host of objectively bad questions, while losing the site very little - if anything at all - of value.
In summary, I'd advocate putting a stop to this type of question because they more or less inherently fail the relevance test described in the help section (I'm not inclined to be lenient as I personally consider them uninteresting and of no benefit to the site, although others are of course welcome to their own opinions on that).
However, I'd note that removing this one individual (and their numerous obvious sockpuppet accounts) would do 95% of the work already without requiring any policy change (although given what I've seen of their behaviour across various other network sites, I suspect said removal may become an ongoing task). And at risk of straying too far away from the point, this wouldn't be the only problem solved by doing so: non 'where is this' questions by that group of users are also regularly repetitive (see, for example, the series of questions best summarised as "help me find an excuse to sneak into business class" - 1, 2, 3), sensationalist, and/or just blatantly either paranoid or attention seeking.