Cities may have a bad rep when it comes to growing... well, anything. Keeping a single potted herb alive may prove to be difficult while a full-blown garden, just down right impossible. So we rounded up a few must-see urban garden spaces, which have us seriously reconsidering a city terrace of our own. The trick is to make the garden conform to the space you've got, not the other way around. Take a look at a few examples that inspired US.