English Heritage is a non-departmental public body of the United Kingdom government with a broad remit of managing the historic built environment of England. There are currently 6 English Heritage establishments on Dartmoor. Its functions for maintaining ancient monuments had previously been undertaken by part of the Department of the Environment. English Heritage's best known role is as the steward of over 400 significant historical and archaeological sites, from Stonehenge to the world's earliest iron bridge. In 2007/08 5.3 million visits were paid to staffed English Heritage properties. It also has major responsibilities in conservation, giving advice, registering and protecting the historic environment.