BackStory is launching a fascinating new series called “The Revealer” and we want you to be a part of the action. Every other week, we’ll launch a fresh episode that unveils a new side to a story you thought you already knew.

In the days ahead of the segment, we’ll post photographic clues on our website. These clues will give you a hint about the topic of that week’s Revealer segment.

Check the website daily and when you think you’ve figured out the subject, then post a comment and share your guess! The first correct answer will be announced on the show.

Here’s a look at the first clue for this week’s episode.  Let us know what you think and don’t forget to tune in Thursday at 2200 GMT to see the big “Reveal.”