More ideas from 刘婷婷
♥ impossible structures New Gallery Video" https://vimeo.com/66473401 Or YouTube Video" http://www.youtube.com/watch?v=hkRuesCs1_M     I would like your insight? Please review and tell me what you think. Mark

These optical illusions require precise geometric measurements to make and they all show a resemblance to some shape or shapes. They are each unique in their individual design.

Magic Transistor on Tumblr

Manly Palmer Hall collection of alchemical manuscripts, box 17 - 1600 - via Internet Archive Manly Palmer Hall collection of alchemical manuscripts, box 20 - 1600 - via Internet Archive