The project aims to create a new “place” for all Helsinki citizens and visitors, that could be open, accessible, welcoming, and able to stimulate curiosity. The new public destination is conceived as the natural extension of the exterior area into the indoor spaces, through stepped terraces, which provide views towards the harbour and the main city landmarks. The sloped platforms reach the 1st level, which becomes the main floor. In this level are located the main free-access areas: a large and flexible lobby, the architecture and design library, the “learning-by-doing" design workshops, the events venue, as well the staff offices. At the ground floor, along the Makasiiniranta seaside promenade, are located the main fully accessible entrance, the bar/restaurant and a design products retail (sea side), as well the technical, logistics and support spaces (city side). The second level is dedicated to the exhibition galleries, which are hosted into “floating” volumes, reminding the image of the dynamic harbour activities. The new Museum roof looks more as a light “shelter” (the first architecture of the humankind), that covers and protects the space and the different activities below. The galleries volumes extend through it, in order to provide different free hight spaces, as well to catch and filter the natural light. On the rooftop is located a special flexible panoramic venue, which extends outside with a large terrace. The Tähtitorninvuori Hill landscape and vegetation will flow-doawn naturally, towards the sea front and the new square. Seen from an elevated point of view, the building shape completes and ends the Saaret development ‘fortress” blocks. But from a pedestrian eye view, all facades look very permeable, and the limit between the outside and the inside become more uncertain and smoother: the feeling will be similar of approaching and then walking through a nordic forest, while seeing the city, the hill and the harbour on the background. During the darker hours the AD Museum will become an attractive “magic lantern”. As all buildings should be conceived (especially the public one), the ADM project will also be careful of reducing the energy consumption and the carbon footprint of his construction, his maintenance and his time-life operation. The large flexibility of his spaces allows for future easy adaptations.