Photo by Christina Petridou, via her Flickr page

Christina took this colorful photo on Penteli mountain just outside Athens, Greece, where she lives. As one commentor on Flickr wrote, “beautiful composition and light.” Check out some of Christina’s other photos at the link above. There is some mighty impressive work showing off Greece’s natural beauty.

If you would like to a submit a photo or photos of something transit- or transportation-related, post them to Metro’s Flickr group (we’ve averaging a new member each day!) 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’ below to view our daily posts.