If the observable Universe is our world, the Local Group of galaxies our neighborhood, and the Milky Way our house, the Virgo Supercluster is our city. The “city” has more than 700 galaxies in 100 Local Group “neighborhoods”, and stretches 110 million light years across. To put that in perspective, if the observable Universe is a sphere with a diameter of 1 km, large enough to contain the tallest skyscrapers, the Virgo Supercluster is a sphere 1.47 m across, about the height of a child. On that scale, the Milky Way is a tiny disk 2 mm across.
Keishinrei 