In early May, the AHHAA Science Centre in Tartu, Estonia reopened in a new 10,000m2 building, making it the largest science centre in the Baltic states. The building includes an exhibition area and several rooms for rent either for meetings, workshops or exhibitions. Visitor attractions include: a moving Newton's apple tree, an elevator ride into the hidden depths of the Earth, a tunnel to Australia, children's labs, a children's stock market and a number of other exhibits. Other highlights at the centre include a spherical planetarium and a 4D adventure cinema.