User:Randfan/Optical Illusions I like

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A stylised version of the channel in Waterfall with ambiguous 3-dimensional detail added
A stylised version of the channel in Waterfall with ambiguous 3-dimensional detail added
The Penrose triangle
The Penrose triangle
An example of how an object could appear to be invisible through the use of mirrors
An example of how an object could appear to be invisible through the use of mirrors
An optical illusion. Square A is exactly the same shade of grey as square B. See Same color illusion
An optical illusion. Square A is exactly the same shade of grey as square B. See Same color illusion
The Scintillating grid illusion or Hermann grid illusion. Dark spots seem to appear and disappear very quickly at the intersections
The Scintillating grid illusion or Hermann grid illusion. Dark spots seem to appear and disappear very quickly at the intersections
Simultaneous Contrast Illusion. The grey bar is the same shade throughout
Simultaneous Contrast Illusion. The grey bar is the same shade throughout
An optical illusion. The two circles seem to move when the viewer's head is moving forwards and backwards while looking at the black dot.
An optical illusion. The two circles seem to move when the viewer's head is moving forwards and backwards while looking at the black dot.
Floor tiles at the Basilica of St. John Lateran in Rome. The pattern creates an illusion of three-dimensional boxes.
Floor tiles at the Basilica of St. John Lateran in Rome. The pattern creates an illusion of three-dimensional boxes.
Magic tap, which appears to float in the sky with an endless supply of water. In actuality, there is a pipe hidden in the stream of water.
Magic tap, which appears to float in the sky with an endless supply of water. In actuality, there is a pipe hidden in the stream of water.