We should probably stick more to the location being the answer, rather than having the location as a clue to some other question.
While it might be fun, and informative, to dig around looking for uses to which an area has been put, it has the potential to become exclusive to people who, for example, have watched a certain movie, or are involved in a particular industry. I would like to keep WitW open to as many people as possible, so my suggestion is that the final answer should always be the location shown in the photograph, with as much detail as you think fit, even down to a street address if necessary.
If anyone wants to come back with more information about a location, and things that may have happened there, this thread would be an ideal place to do it. The game has always been about education, and I, for one, have an endless appetite for trivia, so information is always welcome.
If anyone else has any thoughts about the game in general, or specifics as to how we can make it even more user-friendly, please feel free to pitch in with ideas.