With update "User Photos," you can now seamlessly browse a location in Street View, and can see user-contributed photographs directly overlaid within the panorama.
"new feature places thumbnails of relevant photos on top of Street View imagery when you click "Photos" option at top right of panorama. When you move your mouse cursor over one of these thumbnails, a photo appears which matches content of panoramic view. Using overlays you can quickly preview several photos without changing your viewpoint or losing track of where you were. And if you click on photo, you enter into "interactive photo browser" to explore additional pictures taken by community. It's now even easier to inspect architectural details and close-up quirks, or see what's happening at a place at more than one time of the day. Start to explore this new world through the eyes of other travelers with some of these locations," revealed Google:
Live Demo - See how Bundesplatz in Bern comes alive during the summer: