On this site you can see ALL the entries and (get this!) download computer/tablet/phone wallpaper of all of them, and share them with your friends.
Not only that but each photographer explains where and how the photographs came about and how they felt when they took them.
Here are some of my favourites (see source on photographs). When I see such beauty on this beleaguered planet of ours, it makes my heart full and my soul happy.
This is the grand winner