Milky Way over Anza-Borrego Desert State Park, California, United States (© Kevin Key/Slworking)/Getty Images)

When the lights go down, the universe puts on a show. The image of the Milky Way glowing above Anza-Borrego Desert State Park captures that feeling perfectly. As California's largest state park and a certified International Dark-Sky Association Dark Sky Park, Anza-Borrego offers some of the clearest night skies in the country. On cloudless evenings, the heavens fill with planets, star clusters and the pale river of our home galaxy, a sight long lost to many city dwellers.