Looking for a unique and powerful accent to your garden? Try some wood stairs: These thick slices of tree trunks lead up through a stone wall, providing a functional pathway with natural beauty. See the whole Diablo Teahouse Garden at Living Green.
Here is an idea for a vertical garden in a classroom (plus a fish tank). This could also work in other places -- homes, places of worship, community centres, etc. Maybe even outdoors? With a mesh covering over the fish tank, the cats couldn't get in.
Stairway fountain ~ incorporated into the stairs and path of a paved walkway creating an element of surprise . A boulder anchors one end of the stream & a basin captures the water, recycling it back to the rock.