A multi is also a good option, surely there was something at the 'interesting' location to see, find some numbers, letters in a name or whatever then go to a slightly less muggle rich location to find the cache?
I have done a couple of caches in York, but I gave up after the two virtuals and a couple of trad's though, far too busy a place to be acting dodgy. I didn't even bother looking for the solved puzzles