The earliest construction dates from 3000 AD and consisted of a circular moat cum embankment with a diameter of 102 metres which enclosed 56 cavities in which probably wooden posts stood. Those 56 'Aubrey Holes' bear the name of a 17th-century antiquarian who first mentioned them. They were built in the direction of the summer and winter solstices.
Against 2500 AD were there inside the circle five huge sarsen standing stones placed in the shape of a horseshoe. They are called 'Trilithon' stones because they were in pairs capped with flat horizontal bricks (ribbons). Around this was another circle of 30 trilithons. Those 4-metre-high mast dogs came from a area 25 km north of the monument.
Later, two arched rows were also added blue standing stones bee, taken from quarries in Wales, 230 km away!
From the bronze age paid less attention to stone structures and began to graftumuli to be constructed. A period of decay occurred that would last until now, 4,000 years later, and resulted in the remains we can still admire today.