Contractors are helping the US National Park Service to clean the famous sculptures of four ex-US presidents at Mount Rushmore in South Dakota.
The carvings have not been cleaned since their creation 65 years ago.
A group of 12 weir owners along the River Stour in Dorset plan to build a hydrostation to supply their homes, farms and businesses, and sell the surplus to the surrounding area. The Stour Vale Mills hydro-group believes that if hydro projects were installed at all the thousands of former mill sites in the UK, they could meet 10% of the country's power needs. The plans follow a decision by the Queen to build a hydrostation in Romney Weir in the Thames to power Windsor Castle.
Ancient and regionally distinctive British road junction 'finger-post' signs are threatened by neglect and decay and should be saved, according to English Heritage. A government edict in 1964 saw many of the signs removed and replaced by clearer signs.
But many remain because the edict was ignored.