Although the image above appears to be moving
it is static and your brain is doing the moving.

On the top you see a circle of dots, one of which briefly disappears, circling around.   Let your gaze rest on the central fixation cross, but observe with your “inner eye” the patches just when they disappear. With good fixation, you should see a strong greenish color whenever the violet patch has disappeared.  When you are fixating well, after a few cycles you will actually see a rotating green spot!  If your gaze is really steady, the magenta patches will disappear, leaving only a rotating green spot!

The floor appears to bulge out, even though
all the squares in the above figure are equal.

This checkered background consists of squares but appears to wave.

Rollers appear to rotate without effort.

The figures consist of rectangles and squares but appear to bulge out.
Bulging-out motion also appears in the periphery vision.

Vertical or horizontal gray lines appear to be distorted.

The red lines appear to tilt though they are actually vertical.

The black horizontal lines are actually parallel but appear to tilt alternately.

Inner gold squares appear to tilt counterclockwise.

Concentric arrays of rectangles appear to form a spiral.

The parallel horizontal lines do not appear to be parallel.

The parallel oblique lines do not appear to be parallel.

The inset appears to move rightward.

The left half appears to move leftward while the right half rightward.

The image appears to move.

Vertical or horizontal edges appear to be distorted.

You can stop the animation by putting the cursor on the image. You can resume it by moving the cursor away from the image.

The upper row appears to move rightward while the lower one leftward,
although this animation does not have any moving graphics at all.

Illusory blue dots appear to scintillate.

Red circles appear to scintillate.

Red flowers appear to expand when they appear.

An expanding cushion

Transparent escalators appear to ascend or descend.

Something appears to run in the gray radii.