Illusions Index

face or beggar spotty dog vase or talking heads girl or hag oung girl / old hag Young or old man ? Three faces Indian or Eskimo Duck or Rabbit? missing cheese Convex or concave? 9 hidden people Donkey or seal? Old man or a kiss ? Three hidden faces 5 hidden faces Candle face Saxophone player or face ? Skull or vanity ? A skull or a couple ? A pair of gossips or the devil? The Liar Old People Trees or a knight?

This or that

hollow brick fork shelves shelves and balls technical drawing Ambihelical Hexnut Impossible triangle & devils pitchforks Belvedere crate Impossible Triangle Impossible Penetrations

Penrose stairs Impossible joinery Tribar

Ring Flat 8 Quadrature of the Wheel An Oscar Reutersvard figure An Oscar Reutersvard figure Inpossible Corner Stool Images of Illusion Two-bar Torus Building an impossible arch Four Bar Layered blocks Two Arrows Meander How many legs? Up or Down Folds Structural Constellation Structural Constellation

Almost real

Gameboard Madonna and Child - Adoration of the Magi Section of a Cube A Slightly Difficult Interlocking Wood Puzzle The Magpie on the Gallows Apolinere Enameled Steps or Floor Tiles The Wearisome and the Easy Way to the Top Frans Erens Perspectival Absurdities Steps Megalithic Monument Double Guarded Gateway to the Wintery Arcadia Carefully restored Roman ruin ... Caryatids Govert Schilling Passenger Train Street in San Francisco Landscapers Audience Ships Dali - Slave Market Bent space Dear Glacier Horses Jigsaw Roman Arch

Strange Pictures (Page 1), (Page 2), (Page 3), (Page 4)

circles parallel lines square and circle spirals Colour Spiral spots Moving dots stripes tower zollner triangle 1 Triangle 2 triangle 3 triangle 4 Muller - Lyer Illusion corridor illusion Blur Bulb Negative How many pinks ? lines track lines Perspective distortion Necker cube Ponzo Illusion Poggendorff Illusion Orbison variant A Circle ? Lipps variant A Lipps variant B Shades of grey What size? square? in circle

squares? Sander Parallelogram Life - The Fraser Illusion Which way is this card facing ? Woman sawn in half !!! Sausage Fingers Wavy lines St Michaels Hill St Michaels Hill St Michaels Hill Bumps Not really an optical illusion Not really an optical illusion Moving circles

Arches CBS Tromp l'oeil - Cincinnati Keep Still! Clever Camouflage

Antioch mosaic Trapezoids Color Concentrate Corporation logo Tri Lengths Line length Bent length

Can you believe your eyes? (Page 1), (Page 2), (Page 3), (Page 4)

Necker Cut Diamond Ring in a Presentation Box An Odd Bridge The Devils Bridge Eschers Toys Ready Assembled Shelf (MFI)

Some ideas that I had

Thanks to an email from Peter Shearn, a fellow Bristolian, who reminded me of the cafe at the bottom St Michael's Hill.

Thanks too to Patty Waltermire, Mark Griffiths and John Mitchelmore who sent me more material for these pages.

Other pages in this section...

This page created 17th May 1999, last modified 6th May 2014


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