Grab these beautiful free desktop images. Click the download $ symbol and go through checkout in the normal way. Nothing to pay. All are high resolution (5120 x 2880 pixels) and look great as backgrounds on my 27" iMac. To see roughly how one of these images will look on your machine, click on it to go to its page, then click on the expand icon at the bottom right of the enlarged image and it will fill your screen. That gives you a low-resolution preview. The full-sized downloaded one will be much more detailed.