御苑[gyoen] imperial garden
田苑[denon] country
入苑[nyuuen] enrollment in kindergarten
入苑券[nyuuenken] ticket to the garden
内苑[naien] inner garden

外苑[gaien] outer garden
神苑[shinen] shrine gardens
芸苑[geien] artistic and literary circles
神宮外苑[jinguugaien] outer gardens of Meiji Shrine