The sound of running water is soothing and can add tranquility to any landscape. You can either pair a landscape waterfall with a pond or create one without a pond. These instructions describe how to design and build a waterfall without a pond.
This "natural" outdoor hot tub would go great with my Japanese garden theme. It is almost like a hot spring. I'd get rid of the ugly fence in the background though and have a lot of flowers, trees, and bushes.