I love optical illusions, and this guy is a master. He has lots of videos on Youtube, here are three favorites.
As it were…
As it were…
The ruminations of topher1kenobe
Recent tunes
Marrakesh Night Market
Loreena McKennitt
54 minsThe Dark Night Of The Soul
Loreena McKennitt
1 hourThe Bonny Swans
Loreena McKennitt
1 hourThe Mystic's Dream
Loreena McKennitt
1 hourCymbeline
Loreena McKennitt
1 hour
The Nintendo one is by far the most impressive to me. Very Escher-esque.