The Google Maps team has just enhanced the Street View feature.
Starting from today, while you are in Street View mode in popular places or sightseeings, you may find and explore relevant user photos. User photos are provided by the Panoramio service, and they are being displayed in thumbnails on the top of the Street View application.
Have a look on the video below showing Notre Dame in Paris, or click here to view Sagrada Familia in Barcelona.

Really impressive!!!
Thank you for this post!