In an urban setting, landscape architecture is the creative use of existing space to provide small pockets of growth and sustainability. This is realized in spaces such as rooftop gardens, pocket parks, hanging gardens, and so on. The main idea of architecture in this context being function AND form combining to provide a place for nature to grow while also providing a space that is pleasing to the eye and can't create a type of harmony with the soul that mere bricks and concrete can do, alone.