Belgravia House in London by Todhunter Earle. Even though this is a rooftop garden, the design show would be excellent for any long, narrow yard. Great way to break up the space by making different "zones"!
Here's one project that proves that you can use virtually any type of vessel to create vertical herb planters. This gardener repurposed a set of old metal ammo boxes for his artistic floor-to-ceiling garden.