The British government says it wants to build the country’s longest tunnel as a way to resolve traffic jams on one of its busiest highways. The problem, however, is that it will run near Stonehenge, a world heritage site.

While some preservationists praised Monday's announcement, saying the 1.8 miles tunnel will unclog the landscape around the stones, others fear the governments efforts are not ambitious enough. At stake, is the future of a 5,000-year-old site, visited by more than a million tourists every year.