Explore optical illusions through websites, videos, and hands-on activities on the Exploratorium website. For 40-plus years, we’ve offered creative, thought-provoking exhibits, experiences, tools, and projects that ignite curiosity, encourage exploration, and lead to profound learning.
Explore the surprising side of color.
Make a bright spot brighter.
What happened to your whole hand?
Eye'll be seeing you.
A colored object may look different against different-colored backgrounds.
A face seen upside down may hold some surprises.
Make the palm of your hand appear to squirm and twist.
It’s all done with mirrors.
What you see is often affected by what you expect to see.
There’s more to seeing than meets the eye.
Your experience of the world influences what you see.
Now you see it; now you don’t—an object without a sharp edge can fade from your view.