Gregor J. Rothfuss, the technology lead for the Google Maps team, announced on Google+ that Google Maps now supports places without addresses.
This is also known as location codes or plus codes. Plus+Codes are short codes for locations, for places that don't have their own street address.
Gregor said on Google+:
google maps now supports open location codes, which are a nice alternative to addresses in the many parts of the world that don't have a good addressing scheme. you can learn more at http://plus.codes/
Here is an example of it working in Google Maps for a search on [XQ+2P]:
This might seem like an insignificant change but it is pretty big.
Forum discussion at Google+.