Can't remove photo from dashboard...

I recently downloaded the new OS X Mav. and was playing around with it and I somehow added a photo to my dashboard. It is locked in there, which wouldn't be a problem except for it never goes away, even when my dashboard is closed, so it is blocking things on my screen constantly.
I tried going into the dashboard and clicking the - in the lower left corner, all of my widgets had the X come up to delete them except for the photo, it remains locked in place. This is really fruturating because its blocking my sight of things on my screen.
Help would be wonderful!
Thanks!