I served a mission in France and these prints are amazingly accurate as to how parts of my mission looked. Particularly the blue street numbers on the buildings. Because these have a sentimental value to me they were worth the unspeakable amount of money that I spent on them.
But, I've found that I can take something with just as much personal value and make it look just as good. For example:
But, if you're unable to have a friend bring you back some postcards of Europe, don't hesitate to use pictures that you've taken, or even pictures from a magazine.