We (DEB and Matthew) really prefer to visit Avebury rather than Stonehenge. When we picked up my mom on the outskirts of London, we visited Salisbury Cathedral, and stopped by Old Saarum for photos before we went to Stonehenge, and then afterwards before we went back to our house we went to Avebury. There is also a Woodhenge, but I have not visited that. (A "henge" is a circular prehistoric architectural structure)
Avebury is about 20 miles north of Stonehenge on Salisbury Plain. There are several places called Woodhenge. The English Woodhenge (as is indicated by the name) was made of wood and identified from aerial photographs. It is north of Amesbury in Wiltshire, England, within the civil parish of Durrington. It is closer to Amesbury than Stonehenge is.
The countryside around Stonehenge is full of other prehistoric remains. The most famous is Woodhenge just outside the village of Amesbury, from 2300 B.C. Woodhenge was once more important than Stonehenge, but as its name suggests it was built more in wood, and less therefore survives today although the six circles have been reconstructed with concrete bollards. It is well signposted from Amesbury. Apart from this, you will see plenty of burial mounds and other remains just by scanning the countryside from Stonehenge car park and there are marked footpaths throughout the countryside if you have half a day to spend just walking in several directions to see more.
The fact that Stonehenge is right in the middle of a military training area is unkown by most people and missed by lots of tourists.
This gives a special scope to this already enigmatic place. If you're lucky you'll be able to take a picture of the so famous stone circle being sorrounded by military helicopters.
When you're getting there, if you're driving it is funny to see road signs avising you to be careful not by deers crossing the motorway, but by tanks. If you get a picture of this unusual road signs please share one with me as I went by coach and I couldn't stop to shoot one.