how to get back original"backgrounds" pictures on lumia 720

[WPCentral Question]

the backgrounds pictures like a winding road, a bird which were already available changed with new photos after amber update on the lumia 720

 

[GrandGerminator]

Ine the folder "saved pictures" or backgounds ? Backgrounds pictures can't be deleted. But if you deleted saved pictures, maybe you can try to find them on the web