Facility Guide“Explore, Discover Umimirai!”
If you look at the round windows closely, you may find that they are different in size and type. There are three sizes of windows (20cm, 25cm and 30cm in diameter) with four different types of glass which are processed in eight different ways. The glass was made at the factory where they make headlights. Soft light comes in evenly through the glass with a trumpet-shape frame. You may also notice that each window is different on the inside and outside.