A field in Japan is built on top of a hill. http://www.panoramio.com/photo/3324183
A windmill is placed on this farm so the farm will have electricity. http://static.panoramio.com/photos/large/245007.jpg
A field in Japan is built away from the cities. http://thecalloftheland.files.wordpress.com/2009/04/farm-japan.jpg
City farming is a big deal now in order to not waste space. http://www.shifteast.com/asia-trends/wp-content/uploads/2010/08/japan-city-farm-shimin-noen-ecology.jpg
Scientists in Japan have figured out a way to grown lettuce without having it touch the outside air. http://cleanroom.net/