New Humanist magazine have run a Paranormality article by my good self on the psychology of ghosts, goblins and god here.

I am a big fan of Lego and so was delighted to come across these wonderful illusions…..

1) Impossible bench

2)Man in impossible arch

3) Amazing recreation of Escher print….

4)Another great Escher-inspired idea….

5) The lines are all straight!

So, which is your favourite?

UPDATE: 3 and 4 are by Andrew Lipson – more about his work here.



  1. 5 is favourite, as it takes effort not to see what seems obvious…. But 4 is the one I would like to have built…

  2. I don’t think I’ve ever seen a Lego illusion, they are all fantastic. I will certainly be looking up more.

  3. At first, I was leaning towards 5 as well, for its simplicity, but it has two flaws: focus, and a perspective tilt. While perspective preserves straight lines, but not necessarily parallel ones, that’s a drawback for the intent here. So, 4 it is for me – iconic, best execution. The original is titled Relativity.

    1 – looks too fishy – obvious image smoothing in the red stripe.
    2 – is somewhat easy to spot (lintel, to our right).
    3 – points for effort, but focus is bad, and Escher’s original Balcony has smooth transitions around the bulge.
    4 – nice build.
    5 – out of focus, perspective tilt.

    1. Does a movie critic have to make movies to be effective? Do you refrain from criticism after watching a movie or beholding a piece of art because you do not create one yourself? Does the restaurant critic also need to be a chef to have the right to ply his or her trade?

      Richard asked for a favourite, and I gave a itemized, skeptical, and yes, critical opinion. We are above the grade where everyone’s a winner, are we not?

      Sure, nice ideas and inspirations are behind all the efforts. Yet I stand by that only one is truly well executed.

  4. They’re all cool. I’d like to know who made them though – posting images on your blog without attribution seems a bit rude (unless you’ve been playing with lego yourself Richard?)

    1. Agree with Alan.

      Richard makes it clear that these are not his own works, but on the web, at least links are in order, if not full attributions.

  5. #5 is my favorite, because without a ruler, I can’t make myself see straight lines.

    I really like the sleight of hand in #1, however – the guy on the right is not just there to illustrate the illusion, but also to conceal the edge of the taller lego piece!

  6. Number 5 is amazing, even with a ruler on the screen, you can’t make the next line up look straight.

    Also, it works on a different scale too – zoom your browser view out (or sit across the room!), and further diagonal lines seem to appear.

    1. Now that’s nice! I thought I try a minimal version in postscipt, but your HTML/CSS is much easier to view.

  7. No. 5, as I was comparing the straight lines to a notepad window thinking, ‘they’re not straight’, before realising the picture isn’t parallel to begin with.

  8. I think they’re all really good and would like to know when lego are releasing them as kits- Number 4 would keep my son quiet for hours!!!

  9. These writings to me are really hard to be able to decipher. This is really fun you might say because one has figure out what is being reported. I really have to appear into this.

  10. The fifth image – even though I have verified that the lines are straight, I still cannot see it that way. (squinting reveals a very definitive chevron design)

  11. 4’s definitely my favourite what with me being a big fan of the original M. C. Escher ‘Relativity’ lith and Lego.

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