LONDON — The United Nations' cultural agency rejected recommendations Wednesday to place Stonehenge on the list of endangered world heritage sites over concerns that Britain's plans to build a nearby highway tunnel threaten the landscape around the prehistoric monument.
UNESCO experts had recommended listing the stone circle on a plain in southern England as ''in danger'' over contentious plans to redevelop the highway. The highway project has been touted for decades but mired in legal challenges. It aims to move the congested A303 highway underground and slightly farther from Stonehenge.
UNESCO said a site's inclusion on its List of World Heritage Sites in Danger is not punitive and instead is aimed at drawing international attention to the urgent need for conservation measures and ''encourage corrective action.'' If issues are not addressed, sites could be de-listed by UNESCO, though that is rare.
Adding Stonehenge to the list, however, would have increased pressure on the government to reconsider the highway plan, which has faced opposition from residents and archaeologists.
Britain's government argued ahead of the vote at the annual meeting of the World Heritage Committee in New Delhi that efforts to mitigate the planned tunnel's effects on Stonehenge were sufficient and that the site should not be added to the ''in danger'' list.
A spokesperson for the British government welcomed the UNESCO decision over one of the country's ''oldest and most celebrated sites.''
Stonehenge has long captured the imagination of the British public and remains one of the country's biggest tourist draws. That's particularly true at the time of the summer and winter solstices, when the sunrise is greeted by thousands.
Campaign group Stonehenge Alliance said it was ''shocked'' by the UNESCO decision and urged the U.K.'s new Labour government to distance itself from what it called "political maneuverings'' behind it.