I know that this doesn't come close to being a do-it-yourself project, but how cool is this: a Manhattan family has added a bona-fide porch and garden to the rooftop of their sixth-floor apartment. Complete with a screen door, the whole setup includes a newly-sealed roof, a layer of soil (leveled with chopsticks!), 2,200 plants, and a porch swing, with a view that looks out to the Empire State Building. The whole thing is incredible, and worth a look.