The Secret Door
The places you'll go are hosted by Google Street View, so you can use your mouse to move about and explore once you get there -- if you like the place, of course. Some have 'approximate' addresses; in others -- your guess is as good as anyone's as to where you are. It takes you all over the world.
If you want to leave the place you're at, just click on the 'Take Me Somewhere Else' at the top left side of the photo window.