You can create Google Streetview routes on Rouvy. Rouvy will simulate the real world terrain/elevation changes (assuming you have a trainer that can adjust the resistance to match). You can almost always find a 30 day trial for Rouvy if you look around. But you might get greater enjoyment by riding one of their virtual routes which have real video.
I've never had any inclination to actually try out the streetview-based routes when I could be riding a smoother-looking route with high resolution video. But that's just me.
I can see how it would be useful for previewing the terrain on a particular route you would like to try.