Create a world leading family playground with equipment and experiences which promote family interactions and bonding. Include undercover, aboveground, underground options. Invite the world to send in free ideas. Have single, couple and group activities. Include options for all ages including seniors / grandparents. This would promote family time, intergenerational connection, mental wellness physical activity, risk taking for kids and being outdoors. Make it highly innovative and use the latest research about play at all ages.