photo by Neil Pulling, via his Flickr photostream

Nice use of color in this photo from Europe — the red train against the backdrop of the blue building. Go ahead and see if you can guess the city — there’s one obvious clue on the building that should narrow down your choices.

To submit a photo or photos of something transportation-related, post them to Metro’s Flickr group or email them to sourcemetro@gmail.com. The photos we’ve featured can be seen in these galleries on Flickr. Or click on the ‘art of transit’ in the categories box at right.

The photo was taken in the port city of Hamburg, Germany. Below is a map of the rail system — it’s not small:

Click above to see a larger map.