A better approach would be to click on Rewards by Level, and select "View All by Level" (the last choice in the drop-down menu).
That way, if there are any non-Travel & Lodging freebies, they would show up. (I have no idea if there have been, or will be, any freebies of this type, but in case there are....)
...I logged into my account, then clicked on "Rewards", then on the left hand side of the screen there are a few drop-down boxes where you can select to browse rewards options by category, by amount needed, etc.
I selected the one that says Travel & Lodging, and at the top of the list that appeared was the "Free" offer.
Hope that helps!
edit - here's a screenshot
