I need the raw OSM data. I am still exploring how to read these files and use the data in algorithms.

@26eb54... : The bigger the better. I would like something like a huge country (like america) or a big part of Europe (thank you very much for the reply)

@!i! : Thanks a lot for your reply. I would like a bigger area and maybe a slightly smaller fraction of changes compared to the whole map. But this definitely is something along the lines of what I am looking for .. thanks a lot