..
Click on any image. Then, select the desired viewing size (small, medium, large, original) from the menu under the photo.

If you want to download an image while viewing it at the desired size, right click on it and select "Save Image As" from your browser's menus, selecting the desired folder to save it to on your hard disk drive. The original size images are 12 Megapixels and suitable for larger prints.
..