Playgrounds are competing for kids' time and losing. Nearly 25 percent of children ages 9 through 13 have no free time for physical activity, and a child is six times as likely to play a videogame as to ride a bike. The playgrounds of tomorrow must offer something that even the most enticing virtual offerings cannot: real spaces that look at least as amazing as anything virtual. Architects and design firms are remaking the playground by taking virtualization head on. These spaces are complex and engaging, and some even have buttons to push.