The night sky has amazed human through the history. Even our early ancestors, the prehistoric cavemen, has been touched by the stars and some of the very first mythical imagination and legends might be created based on the unreachable starry sky. There are signs that the constellation Ursa Major (the Big Bear), notable in this view with the bright seven stars, was among the first created star figures in the mankind imagination. The figure and area of constellations Ursa Major and Ursa Minor, the two celestial bears, are displayed here. This photograph is made in a moonlit night from inside the Roodafshan cave in Alborz Mountains of Iran. With a magnificent entrance hall of 168 m length, 94 m width and 40 m high it is the biggest known cave chamber in Iran.