These are not "crop circles" - they're much better...

Given away by strange, crop circle-like formations seen from the air, a huge prehistoric ceremonial complex discovered in southern England has taken archaeologists by surprise.

A thousand years older than nearby Stonehenge, the site includes the remains of wooden temples and two massive, 6,000-year-old tombs...

Discovered during a routine aerial survey by English Heritage, the U.K. government's historic-preservation agency, the "crop circles" are the results of buried archaeological structures interfering with plant growth...

The central features are two great tombs topped by massive mounds—made shorter by centuries of plowing—called long barrows. The larger of the two tombs is 70 meters (230 feet) long...

The Damerham tombs have yet to be excavated, but experts say the long barrows likely contain chambers—probably carved into chalk bedrock and reinforced with wood—filled with human bones associated with ancestor worship...

Evidence of prehistoric agricultural fields suggest the area was at least partly cultivated by the time the Romans invaded Britain in the first century A.D., generally considered to be the end of the regions' prehistoric period...

The actual barrows and mounds near Damerham have been diminished by centuries of plowing, but that, ironically, may make them much more valuable archaeologically, according to Pollard, of the University of Bristol.

The mounds would have been irresistible advertisements for tomb raiders, who in the 18th and 19th centuries targeted Bronze Age burials for their ornate grave goods.

So cool. Wish I could volunteer for that dig...