Have you ever wondered how your favorite place used to look like 50 or 100 years ago? Would you like to refresh your childhood memories and find out what your native town looked like when you were a kid. If "yes" is the answer to either of the questions, you'll find the three projects shared in this post quite exciting. They have a few things in common: they all support Google Maps for you to easily find the place you are interested in. They all have Google Earth integrated for you to get the location 3D view and they allow users to upload old photographs of any geographical locations.