Did you know that Flickr has videos as well as still photos and illustrations? This week's pick, a moody, atmospheric journey through a tunnel, is a video called "Into the Light." Though it lasts only 44 seconds, the sights and sounds may stay with you for much longer.

The filmmaker's Flickr handle is vapour trail, and both his still and moving images are extraordinary.

To nominate an image for upcoming Flickr Fridays, click the Comments button. Before we can consider an image, however, it must be approved for sharing under the Creative Commons license. (That searching option is part of Flickr's Advanced Search page.)