Gardening is a way to connect with the earth, and this connection becomes even more striking in a rooftop garden, where the earth sits closer to the sky. Rooftop gardens allow city dwellers to embrace their valuable outdoor space and interact with nature. While some rooftop gardens are created using potted plants, others are lawn-like environments, magically transformed by their urban owners. Whether your rooftop space is large or small, it has the potential to become a lush oasis. Click through our photo gallery to pluck some ideas for designing your own garden in the sky.