Panoramic trick photography

You can produce the effect of being inside a cylinder by taking a panoramic photo and joining the left edge to the right edge. It's only really effective if the two edges match up perfectly!!

Here is a photo which demonstrates just that :

Simply place the mouse cursor over the image, holding down the mouse button move the mouse from left to right to see the illusion of a spinning object.
With the cursor on the picture, press the 'Ctrl' button to zoom out, and the 'Shift' button to zoom in.

(Photo supplied by Bunny London.)