My fiancee has here K1 embassy interview end of April in Warsaw, then I assume they take her passport and return it with the visa sometime later (I believe 3-5 days in Warsaw, but if anyone had a different experience, please let me know). So while we are waiting on the visa processing, we can't really travel by any means that require a passport, is that correct? We thought about travelling around Europe a little bit, but are we going to be stuck in Poland while waiting? Or I can assume we can rent a car and drive around the Shenghen zone since no passport required at the borders and see it that way. Any other limitations? If anyone has experience, would love to hear it and any suggestions. Thanks in advance.