Stonehenge

Supporters say the tunnel will reduce noise and hide cars for visitors to the prehistoric landmark. Opponents warn of possible damage to the site which archaeologists continue to study.

The massive prehistoric structure "is significantly larger than any comparative prehistoric monument that we know of in Britain, at least," a lead researcher in the project says.

Twice a year, on the fall and spring equinoxes, the sun sets perfectly framed by Chicago's skyscrapers. The perhaps unintended phenomenon takes its name from England's ancient monument Stonehenge.

An analysis of bones excavated from the ancient site reveals that some of the people buried there were from the Preseli Mountains in Wales.

Researchers analyzing pottery fragments and bones at a neolithic settlement near Stonehenge believe roast pork and beef stew were likely main courses for people visiting the famous English monument.

The newly found Neolithic monument dates from more than 4,000 years ago, researchers say, adding a new wrinkle to the "super-henge" at Durrington Walls.

Researchers from Birmingham University used high-tech equipment to map 17 ritual monuments in the area. That's in addition to the iconic circle of stones that has stood there for thousands of years.