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Twisted Stairs printsDo you see the stairs to the balcony from above or below? They're impossibly twisted! |
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Fraser SpiralIt looks like a nest of spirals - but they're circles |
Impossible RingIn the everyday world the ring couldn't connect up the way it appears to |
Fish tessellationFish tessellation - the fish fit together like jig-saw pieces, no gaps or overlaps |
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MoonfaceIs the Moon looking at you full-face, or in profile to the right? |
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Mask/skull illusionIs the skull holding up the mask to take a look at it, or is it the other way round? |
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