What's real, what isn't?

The Illusions exhibition is full of exhibits one stranger than the other. There is something to wonder at for your eyes, ears, and even your fingertips.

The catalogue of exhibits alone is enough to inspire wonder: what on earth is a hyperbolic slot? Or what does an unending sound actually sound like? How do you get a flush of colour out of a black and white picture? Will the gigantic book of illusions jumble up your senses completely?

The Illusions exhibition is an original production of Science Centre Tietomaa.