Obama Visits Stonehenge, Whose Monoliths Still Hold Mysteries
U.S. president makes a pitstop on his way back from NATO summit.
"How cool is this!" the U.S. president said amid a 20-minute walk around the famous standing stones in Wiltshire, England, according to the pool report. "Knocked it off the bucket [list]!" (See National Geographic's Stonehenge photos.)
People have wondered for centuries why the eerie 4,500-year-old megaliths were built. Theories have held that Stonehenge was an astronomical calendar, a place of healing, or a marker for supposedly magical energy lines in the ground, perhaps built by the Druids. (Read about Stonehenge in National Geographic magazine.)
Archaeologist Mike Parker Pearson and his colleagues at the Stonehenge Riverside Project, whose research was funded in part by the National Geographic Society, have unearthed some clues about the
