===== From rgow@lanset.com: It's a good impossible figure, but stretching the topic IMO. ===== From raytracing@grayproductions.net: I just keep staring at this. Nice optical illusion. ===== From tek@evilsuperbrain.com: Not exactly architecture. But, from a technical point of view, you've pulled off the illusion very well. ===== From marlo.steed@uleth.ca: The concept was good but with such a simple structure then the lighting and the contrast needed to be much more dramatic. The change in the texture doesn't look quite right either. Perhaps trash the global light and add a couple of spotlights. ===== From hildurka@simnet.is: This one is definitely off topic. There is nothing here that even hints at architecture, this is solely an optical illusion. Nice illusion though. ===== From chris_hormann@gmx.de: I think some more effort to bring this in relation with the topic would have been good. Escher also did a lot of architectural motives with this idea BTW. ===== From r@215-241.opf.slu.cz: What about architecture?