Want to stay forever young? Designed to keep their occupants physically and mentally fit as well as disease-free, the best examples of wellness residential architecture boast everything from interiors configured to challenge body and mind, state-of-the-art air and water filtration to zen-like green spaces that minimise life-shortening stress. Join us for a dip in the fountain of eternal youth as we discover the world's ultimate longevity-boosting homes. Click or scroll for more...