Click thumbnails to enlarge.
To save large image as your desktop wallpaper do the following:
PC: Right-click image and select "set as background"
Mac: Hold the option key and click on the image to download. Save the file to your hard drive.
Go to your Apple Menu:Control Panels:Appearance
Select the Desktop tab in the Appearance Control Panel
Select "Place Picture." If there is an image already placed, you will have to select "Remove Picture" followed by "Place Picture."
Select the file you want to use and click on "Open"
Press the Set Desktop button
Close the Appearance Control Panel