I've become very interested on this, although I think everyone in the world likes magic and illusions, just like music, everyone likes it. So i want to make a thread to discuss it, and share videos or pictures.
Personally i like the magicians who explain how the magic trick is done, many people would say "It takes the fun out of magic" because you learn how is done, but i find it just as entretaining to know how it's done. and although it's gonna make it harder to fool people if you show how every magic trick is done, new magic tricks are constantly being done, so we'll never run out of magic tricks.
Here's some good videos that a well known psychologist uploaded to his youtube channel Quirkology, these are my favorites:
I also really like Penn & Teller's shows, here's this video from the first episode of Fool Us
And finally here's some cool paintings that produce optical illusionshttp://www.demotivateur.fr/article-buzz/25-peintures-aux-illusions-d-optique-absolument-hallucinantes-un-truc-de-fou-vous-n-allez-pas-en-croire-vos-yeux--1781