Is it possible to link keyword tags to the Places map location?

 I have all my photos keyword tagged as to where they were taken. Is there a way to use the keyword tags to place them on the places location map. There is sadly no gps location data just my manual keyword tags. Although I have manually added some foreign photo locations on the map, oddly some UK locations have appeared on the places map but I don't know how. Is there a straightforward way for Places to access my keyword tags and place on the Places map, I know this may not be perfect as there are several Manchesters for example, but it would save much time for tousands of images. Any suggestions much appreciated