No ancient structure in England arouses more controversy than Stonehenge, a mysterious ring of monoliths. While archeologists argue over whether it was a place of ritual sacrifice and sun-worship, an astronomical calculator or a royal palace, the guardians of the site struggle to accommodate its year-round crowds. Conservation of Stonehenge is an urgent priority, and unless you arrange for special access (book by phone or online), or come during the summer solstice – when crowds of 35,000 or more gather to watch the sunrise – you must be content with walking around, rather than among, the stones.

Brief history

Some people may find Stonehenge underwhelming, but understanding a little of its history and ancient significance gives an insight into its mystical appeal. What exists today is only a small part of the original prehistoric complex, as many of the outlying stones were probably plundered by medieval and later farmers for building materials. The construction of Stonehenge is thought to have taken place in several stages. In about 3000 BC the outer circular bank and ditch were built, just inside which was dug a ring of 56 pits, which at a later date were filled with a mixture of earth and human ash. Around 2500 BC the first stones were raised within the earthworks, comprising approximately forty great blocks of dolerite (bluestone), whose ultimate source was Preseli in Wales. Some archeologists have suggested that these monoliths were found lying on Salisbury Plain, having been borne down from the Welsh mountains by a glacier in the last Ice Age, but the lack of any other glacial debris on the plain would seem to disprove this theory. It really does seem to be the case that the stones were cut from quarries in Preseli and dragged or floated here on rafts, a prodigious task that has defeated recent attempts to emulate it.

The crucial phase in the creation of the site came during the next six hundred years, when the incomplete bluestone circle was transformed by the construction of a circle of 25 trilithons (two uprights crossed by a lintel) and an inner horseshoe formation of five trilithons. Hewn from Marlborough Downs sandstone, these colossal stones (called sarsens), ranging from 13ft to 21ft in height and weighing up to thirty tons, were carefully dressed and worked – for example, to compensate for perspectival distortion the uprights have a slight swelling in the middle, the same trick as the builders of the Parthenon were to employ hundreds of years later. More bluestones were arranged in various patterns within the outer circle over this period. The purpose of all this work remains baffling, however. The symmetry and location of the site (a slight rise in a flat valley with even views of the horizon in all directions) as well as its alignment towards the points of sunrise and sunset on the summer and winter solstices tend to support the supposition that it was some sort of observatory or time-measuring device. The site ceased to be used at around 1600 BC, and by the Middle Ages it had become a “landmark”. Recent excavations have revealed the existence of a much larger settlement here than had previously been thought – the most substantial Neolithic village of this period to be found on the British mainland in fact – covering a wide area. Nothing is to be seen of the new finds as yet, though there are plans to re-create a part of the ancient complex.

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