So, the idea is that there is a building in Barcelona that appears on no maps, you can't enter, and nobody inside can ever leave. Why? Because it only exists when you look at the city from far away (kind of like on the skyline, but I don't think Barcelona really has a skyline). I guess any city could work, but I want it to be somewhere on this map that hasn't been touched too much yet.
Anyway, a couple questions before I continue; has the above idea been done before? Would a good hook for the article be a picture of a city (the city that this would take place in) with a convincingly photoshopped in building in it?
Continuing, the real brainstorm comes in with "what story I can tell with this", which I want help with. I was thinking of having the Foundation set up a Morse code communication with the people trapped inside using floodlights. Of course, maybe I want the people inside to be more mysterious, so I don't want the Foundation communicating with them. Maybe the whole article is just passively observing the people inside the building with binoculars and writing down what they do. But what would they do? Why does this building exist? What story could be told?
Please help (and tell me if this is a good idea in the first place). Thanks!