Could this megalithic structure, known as Ales Stenar, be much older than we thought? Getty images
Swedish Stonehenge? Stone Structure Spurs Debate -- Discovery News
A series of 59 boulders placed at a seaside cliff in Sweden might represent Stonehenge's "sister" site.
* An ancient stone structure in Sweden may be 1,500 years older than previously thought.
* New analysis suggests the stones represent an ancient astronomical calendar.
* Some researchers argue the stones were placed with the same underlying geometry of Stonehenge.
Ancient Scandinavians dragged 59 boulders to a seaside cliff near what is now the Swedish fishing village of Kåseberga. They carefully arranged the massive stones -- each weighing up to 4,000 pounds (1,800 kilograms) -- in the outline of a 220-foot-long (67-meter) ship overlooking the Baltic Sea.
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