In AHHAA's Hall of Technology, you can ride a bicycle on a rope, step inside a shaking tunnel and discover the mysterious shadow exhibits. You can also take a picture of yourself with an exploding balloon, pull yourself up to the top of the Munchausen Tower, spin inside the Estronaut's training device.
On the side of the hall are the laboratories where various workshops take place every day. The 2nd floor balcony is home to the historical medical collections of the University of Tartu and on the 3rd floor balcony, a fun mathematics exhibition "Aha, Cubed!" is waiting for you.