How about green walls, halls, ramps, you name it?
Try this from Inhabitat (via Re:Vision:
If you’re a fan of botanical architecture, this might just be the coolest building ever.... [This] store in Seoul, South Korea... takes green roofs and living walls to another level, using foliage to cover both the external and internal wall surfaces.
Designed by architects Minsuk Cho and Kisu Park of Mass Studies to house Belgian fashion designer Ann Demeulemeester’s store in Seoul.