Free Fantasy Wallpaper
First click on a screen resolution size to load the big image in your browser.
Windows Instructions: Wait for the image to load, then put the cursor on top of the image, hold down the right mouse button and select "set as wallpaper" or "set as background".
Macintosh Instructions: Wait for the image to load, then hold down the mouse button until a pop-up menu appears allowing you to "download image to disk". When the image is saved, use the Appearance Control Panel to set it as a desktop picture.