Microsoft Bing's daily updated photo backgrounds for the search engine are immensely popular. You can now browse and download all the wallpapers in Bing's history at the official Homepage Gallery for free.
Recent backgrounds are displayed in a chronological thumbnailed gallery, which you can also sort by different filters such as:
- Categories: Travel, Nature, Animal, Work/Culture, Space, Science
- Tags: Modern Structure, Old Structure, Mammals, Plant/Tree, Body of Water, Bird
- Holidays: Christmas, Earth Day
- Colours: (includes a colour bar)
- Places: (includes a country list)
The gallery also has a wallpaper pack of some of the Bing team's favourites. Bing's photographs have been a particular hit, enough that you might want to use them as auto-updating desktop wallpapers or even rotating Google backgrounds.