earlier i spoke to vincent gafney, part of the group that discovered stonehenge. >> i believe in the last week we begin to suspect that there may be up to 200 stones at this site. to put that into context. stonehenge at its -- when it had its most actual individual stones only had about 90. so this does give you some idea of the scale we're talking about. stonehenge is about 110 meters across. this thing is nearly 480 meters, one and a half kilometers in circumference. my job is to collect together all this data and we have huge amounts of information on thousands of archaeological features republishing that. however there are big questions. we don't know what type of stone is it, are they local stones, blue stone from southern wales transported over hundreds of kilometers, we don't know that and geophysics doesn't tell us that. at some point archaeologists will be itching to get a look at them. >> just a reminder, you can find much more on many of our stories on the website. that's way the front page looks like at the moment, and the address is aljazeera.com. humanity, but we're doi