I don't know how extensive this is, but Google Maps street view now goes inside buildings:
To see this for yourself, go on Google Maps to 1028 W Diversey Pkwy, Chicago, 60614. Click on the balloon over Paddy Long's Pub, and click Street View. Notice the double chevron pointing toward the sidewalk:
Click that. And then explore.
I can only weep that we didn't have this kind of data throughout history to see how people lived in the past. And I can only weep for what this will do to privacy.
Update: It looks like they mostly have bars and pubs, including Tommy Nevin's, where Parker spent much of his puppyhood.