The Radar Tower in Essex is England's least visited tourist attraction and saw just six visits in 2013.
Located in Harwich, the tower was used to detect German 'E' boats in the Harwich Harbour approaches during World War II. It was built in 1941 and manned by the Royal Navy, with a range of 15 miles.
The British in India Museum, Lancashire (70 visits), Long Crendon Courthouse, Buckinghamshire (153 visits) and Old Buckenham Windmill, Norfolk (125 visits) were other attractions named the least popular in a survey by VisitEngland.
England's most visited attraction in 2013 was the Tower of London with 2.9 million visits. This was an increase of 18.4 per cent on last year, and was followed by St Pauls Cathedral with 2.1 million visits and Westminster Abbey with 1.8 million visits.
The report revealed that the British Museum was the most popular free attraction, with 6.7 million visitors, followed by the National Gallery, Natural History Museum and Tate Modern.
Across the country, the most visited free attractions regionally include Durham Cathedral, the National Railway Museum in York, the Museum of Liverpool and Bristol Museum and Art Gallery.
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