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HHAA is your guide into the exciting world of science, discoveries, adventure, useful skills and fun entertainment.

AHHAA in Tartu 4D Adventure Cinema in Tartu AHHAA in Tallinn Open: Sun-Thu 10-19 Fri-Sat 10-20 NB! On 24 February the Centre will be open 12-17 Open: Mon-Sun 11.30-20 Open: Mon-Fri 12-20 Sat-Sun 10-20 NB! The exhibition hall is temporarily closed due to the switching of exhibitions. The 4D cinema is OPEN! On 24 February the Centre will be open 12-17