I don't quite understand the logic/grammar behind the phrase wo geht's hier... For example,
„Wo gehts hier zum Theater?“ - „Da müssen Sie immer geradeaus gehen!“
What does the contracted 'es' in geht's refer to?
For some reason, it also seems to me that wo and gehen don't really go well together. "Wo steht etwas?" makes sense to me but I'm not so sure about "wo geht etwas?"
I also thought "wie" would be more logical, like in the English "How do I get to...?", so I would be more likely to say something like "Wie geht man zum Theater?". But I don't know if it's idiomatic in German.