In the whole history, everywhere in the world, gardens have always meant discovery: discovery for the eyes, for the hears, for nose and for mouth also sometimes. In a garden you refresh your body and your soul in the nature, you can stay alone or enjoy some company. The space is not delimited by walls, the doors you pass by are the doors of feelings, of memories and future plans; peace and balance should be inspired by gardens, places where man and nature meet again in an osmotic relationship. Our proposal is a garden where not only the senses, but also the intellect are stimulated: curiosity is the base of our knowledge, and we think that learning can be more effective in the nature, playing with it. The Pendulum, the Newton’s experiment to demonstrate the theory of energy conservation, let us think about a big installation attracting people with its sounds, its materials and colours: the pendulum spheres, full of elements coming from the surroundings, show the energy you are surrounded by, in a ‘concert’ in which each element is an instrument.