Have a Safe Trip
Click to Trip.
Bar none, this is the coolest thing I've seen on the internet. Stare at the pattern for about 20 seconds, then look away from the screen. What you will see is a very accurate simulation (?) of drug-induced hallucination. Bizarre. The closest anyone's ever gotten to capturing what the real thing (?) looks like was, of course, the bar scene in Fear and Loathing in Las Vegas.