April, also known as Caleidoscope City, is a city in continuous movement. Its elements, from street lights or benches to schools, transform themselves in order to fulfill each moment’s needs. For example: at the theatre there is never a “sold out” board as the building expands itself according to the amount of spectators wishing to attend the play. On market days, the buildings rearrange themselves creating a big square. When it rains, they reshape giving shelter to pedestrians. During daytime, the housing space shrinks to its minimum, while the volume of public facilities increases considerably. Office buildings, for example, turn around themselves following the path of the sun. At night time however, the dwellings take up almost the whole city. April is not a city under construction, but a city in permanent transformation, a caleidoscope city, a place where architecture meets the needs of its inhabitants.