Tim Frisch's vision for the backyard of his Kenmore, Washington, home began when his wife, Linda, mentioned she would like a small pond, no bigger than 5 feet in length. Then they attended a seminar on how to build waterfalls and became inspired to do more. A lot more. Over the next four years, they built a 25-foot-long pond with four waterfalls, along with a new deck, a stone patio, and an artificial putting green. Now they enjoy sitting and listening to the waterfalls while watching their 15 koi.