Probably the most famous prehistoric stone monuments of the western world, the Stonehenge is hardly the largest or the most magnificent, yet it has occupied the thoughts and dreams of millions and filled bookshelves with theories of what it was meant for and why it was built. A neolithic monument of unknown origin, the Stonehenge is made up of a collection of over 160 stones, each approximately 4.1 meters (13 feet) high and weighing up to 25 tons. In the early morning or the evening, the Stonehenge recaptures its ancient magic, bathed in the soft, golden hues of the sun; an ancient monument of mammoth blocks of stone that simply defies explanation. Begun around 5000 years ago, the Stonehenge was constructed in phases from stone transported from far-off locales, dressed and fitted on site. Shrouded in an aura of mystery that has inspired a rich heritage of legends and folklore, the story behind the Stonehenge remains a secret closely guarded by the passage of time.