It depends on how much granularity you want. If you want to use just well-known entities, then for sure, wikidata can tie it all together. If you want street level (or even building level) information, that would be too much for Wikidata.

There was already a similar discussion regarding bibliographic data. "Should Wikidata collect *all* bibliographic data?" And the consensus was not all, just what is relevant as hinted by Wikipedia/Wikisource (and common sense).

 

Cheers,

Micru