Laser beam duct tunnel of TAMA300 gravitational wave detector under the ground of Mitaka Campus of National Astronomical Observatory of Japan, Mitaka, Tokyo, Japan.
{{Information |Description=Laser beam duct tunnel of TAMA300 gravitational wave detector under the ground of Mitaka Campus of National Astronomical Observatory of Japan, Mitaka, Tokyo, Japan. |Source=self-made |Date=2008-10-25 |Author= ~~~ |other_versio