You click on one of the photo it will open an overlay/lightbox with comments and information panel like Facebook or other Photo Gallery. Really important feature that must be added. As a matter of fact, a lot of people get addicted to Facebook. Because very nice handy to everything. In particular, photo albums.
So it's not already an option to show the photo name in the lightbox view? I came here to see if that was an option already available. It's very difficult to get back to the photo name to see what the photo was. That's particularly so in the Edge browser, which, in a multi-posting thread, when I exit lightbox takes me to the top of the page, a long way from the photo.