Wikipedia's entry about the Cafe Wall Illusion. View on OpenProcessing - it's a bit more interactive. My eyes, my eyes...
View sketch at OpenProcessing (doesn't work so well on mobile devices)
View sketch at OpenProcessing
02 September 2018
BBC London "let go" of Danny in 2012. This is how he went out in style.
Stray Bob's channel - it's very good. He's blogged other trips, too.
