Many images are paroramas taken as multiple photos and stitched together with Canon PhotoStitch software. The stitches are sometimes invisible and sometimes annoyingly visible. The panoramas are, of course, very wide aspect ratio. You'll have to scroll them laterally just as if you were standing at the location and scanning the scene with your eyes.

Click-hold the top border of this frame and drag it upward to increase the portion of your screen alloted to this frame for better viewing.