As the last stop on his three-day trip to Estonia and the NATO Summit in Wales, President Obama visits the prehistoric monument Stonehenge.
15 Unknown Monuments discovered under Stonehenge
President Obama Visits Stonehenge
[Doku] Neues aus Stonehenge
15 NEW MONUMENTS DISCOVERED AT STONEHENGE
Stonehenge -- Secrets of an Ancient Monument
Stonehenge prehistoric monument
How "Stonehenge" Was Built?