To download wallpaper images:

PC: Click the image link relative to your desktop size, then right-click on the enlarged image and select "Set as Wallpaper."

Mac: Click the image link relative to your desktop size, then click and drag the image to your desktop. Next, from the Apple menu select:
"Control Panel"
"Appearance"
"Desktop"
"Add Picture"
Then select the image you just dragged to your desktop, and click "Set Desktop."

Washington Monument 1280x1024 1024x768	Ring of Kerry, Ireland 1280x1024 1024x768
Incline Railway, Lookout Mountain, Tn 1280x1024 1024x768