StoneHenge

Stonehenge : is an arrangement of mysterious stones standing at Salisbury plain. Stonehenge consists of two circles, the outer one being sarsen stone (sandstone) pillars, formerly supporting lintels (only six remain), the inner one of blue stones.

Inside the latter circle are two series of standing stones each in the shape of a horseshoe. Again the outer series is of sarsen stones, the inner of blue stones. None of the horseshoes is complete, some of the stones have fallen and others are missing altogether.

Inside the innermost horseshoe is a single stone, broken in half, called the Altar Stone and surrounding the outermost circle is a ring of 56 holes called the Aubrey Holes. Intersecting these, some 80 yards from the Altar Stone is the Heel Stone.The sarsen stones are of local origin but the blue stones are generally believed to have been transported somehow from the Prescelly Mountains in the far south-west of Wales.