There are more questions than answers about Stonehenge, situated on the plains just north of the cathedral city of Salisbury, Wiltshire, England. It’s unknown how people moved the huge stones there as the chalky plain was not the source. Obviously these ancient people were smart, industrious and determined.
It is very old but how much we don't know. Scientists bandy figures around but reality is we can only guess. It's reason for existence is even unknown, although it seems to have had spiritual significance. If we could talk to the builders or those who lived in the area at the time we could sort out the mystery.