Nestled in Osaka’s northern suburbs lies a rare escape from the hustle and bustle of a metropolitan area with a population of over 18 million. On weekends, in particular, locals and tourists alike stroll through gardens, laze about on grassy hills and generally just leave the city behind. While the world might remember the 1970 Osaka Expo for its introduction of early cellphones, the display of moon rocks collected by NASA’s Apollo astronauts or the eerie Tower of the Sun by Taro Okamoto, for