Where were the big stones before.

Obama walks past a stone that looks fabricated.
Could the stones all be faked?

you mean like where do the orginal people get the stones?
Stonehenge is a prehistoric monument on Salisbury Plain in Wiltshire, England, consisting of an outer ring of vertical sarsen standing stones, each around 13 feet high, seven feet wide, and weighing around 25 tons, topped by connecting horizontal lintel stones.3 The origins of Stonehenge's massive stone monoliths have been traced to boulders in the nearby chalk hills of Marlborough Downs, just 15 miles north of the prehistoric monument.02 The sarsen stones were most likely caused by boulders in the nearby chalk hills of Marlborough Downs.0 The inner circle of smaller, 9-foot bluestone monoliths likely came from a site in Wales more than 140 miles away.1 The monument's origins can be traced back to a core sample drilled from one of the standing stones at Stonehenge.