I was wondering why there isn't or if there is, an Open Source (Free, or not) Street View like Google Maps. I like geography as a hobby, like my other hobbies, and found GeoHub which sparked my interest in being a free geoguessr alternative. I just don't understand why Google is the only Mapping service people go to, is Google the only one that has street view? is this a hard business model to achieve?

Please, I'd love too know :)