In the hall of heroes there is a button before you get to the statues/discs that opens the door. Maybe you pressed it and didn't realise whereas you didn't before
That's awesome. My whole thing was... I know there's people that like to unwrap the presents themselves. (myself included). If I get time I can post some pics, but by then, I think most people will have already unlocked the garage and treasure. Can't wait to see what they end up doing with those 2 areas...