Hi there, and welcome!
The answer to this riddle is Napoleon's button.
This image should help you find it: http://www.gamezebo.com/screenshots/can%20u%20c%20riddle%206%20button.jpg
Reference: http://www.gamezebo.com/features/can_you_see_what_i_see_tips_tr.html
Let me know that's what you were looking for. If so, thanks for pressing "Accept".
-Scott
MIT Graduate
MIT Graduate, United States Traveler, Information Finder