Berliners crave green open spaces, and this vast new park on a former railway junction is only the latest in a string of urban oases. A railway line still separates the sprawling grounds into the wide-open Westpark, with expansive lawns and play zones for kids, and the Ostpark, with a nature discovery area, a half-pipe, a little maple and oak forest and even an outdoor dance floor. Historic relics like tracks, signals and ramps are smoothly integrated throughout.