Künnapu & Padrik Architects have completed the Science Centre AHHAA in Tartu, Estonia. The new science centre building is a joint project, combined with Tigutorn (Snail Tower). Tigutorn is based on a cosmic spiral and the science centre is based on “the spape of Vesica Piscis, known in sacred geometry, which has been hidden in the design’s main image”. The architects mainly work in the constructivist style and for this project have used a cupola, half-cupola, globe, and rectangle to complete the composition. The heavy emphasis on geometry makes for a dynamic structure and is appropriate for the scientific function of the building. The center includes exhibition halls, auditoriums, offices, shops, a restaurant and cafe, and a planetarium.