The Milky Way. Shot with Canon 5Dmkiii, Sigma 24-70mm f/2.8
Home to our Sun, Earth and all the rest of the solar system. And home to an estimated 100–400 billion stars. That's a lot of stars. The diameter of the galaxy has been estimated at 150,000–180,000 light-years.
You can see the Milky Way unaided in the height of summer in good dark locations. It appears as it's namesake at first glance, a milky luminous streak traversing the sky. In good locations it's possible to see the dark dust lanes and other details.