Click a thumbnail to see the full-size image. If you want the full-size image to open in a new window, hold down the shift key when you click on a picture. Note that these are all Original / Full Size images, suitable for use as a desktop background or a printout.
Below each thumbnail will appear the name of the bridge. Clicking on this link will direct you to the Bridge Browser page for that bridge in the event that you wish to learn more about that particular structure. Clicking on the thumbnail itself will provide you with the Full / Wallpaper sized photo.