Question: How many UNESCO World Heritage sites in the UK are in the country where the designer of Boone's Chapel is a citizen?

English Heritage is a governmental body with a broad remit of managing the historic sites, artefacts and environments of England. 17 of the 25 United Kingdom UNESCO World Heritage Sites fall within England. It is currently sponsored by the Department for Culture, Media and Sport. The charity National Trust for Places of Historic Interest or Natural Beauty holds a contrasting role. Some of the best-known of these are: Hadrian's Wall, Stonehenge, Avebury and Associated Sites, Tower of London, Jurassic Coast, Saltaire, Ironbridge Gorge, Studley Royal Park and various others.There are many museums in England, but perhaps the most notable is London's British Museum. Its collection of more than seven million objects is one of the largest and most comprehensive in the world, sourced from every continent, illustrating and documenting the story of human culture from its beginning to the present. The British Library in London is the national library and is one of the world's largest research libraries, holding over 150 million items in all known languages and formats; including around 25 million books. The most senior art gallery is the National Gallery in Trafalgar Square, which houses a collection of over 2,300 paintings dating from the mid-13th century to 1900. The Tate galleries house the national collections of British and international modern art; they also host the famously controversial Turner Prize. <SEP> The chapel is very small, measuring just 45 square metres and is constructed of red brickwork with Portland stone details to window architraves, rusticated quoins and a pyramidal roof with an open wood cupola. Boone's Chapel is a Grade I listed, single-storey building attributed to Sir Christopher Wren and built in 1683. It is located adjacent to the Worshipful Company of Merchant Taylors almshouses on Lee High Road in Lewisham, London and is one of only two Grade I-listed buildings in the borough of Lewisham (the other is St Paul's, Deptford). <SEP> there are 31 unesco world heritage sites in the united kingdom and the british overseas territories. the unesco list contains one designated site in both england and scotland (the frontiers of the roman empire) plus seventeen exclusively in england, five in scotland, three in wales, one in northern ireland, and one in each of the overseas territories of bermuda, gibraltar, the pitcairn islands, and saint helena. the first sites in the uk to be inscribed on the world heritage list were giant's causeway and causeway coast; durham castle and cathedral; ironbridge gorge; studley royal park including the ruins of fountains abbey; stonehenge, avebury and associated sites; and the castles and town walls of king edward in gwynedd in 1986. the latest site to be inscribed was the lake district in england in july 2017. <SEP> The Sheldonian Theatre, located in Oxford, England, was built from 1664 to 1669 after a design by Christopher Wren for the University of Oxford. The building is named after Gilbert Sheldon, chancellor of the University at the time and the project's main financial backer. It is used for music concerts, lectures and University ceremonies, but not for drama until 2015 when the Christ Church Dramatic Society staged a production of "The Crucible" by Arthur Miller. <SEP> the taj mahal was designated as a unesco world heritage site in 1983 for being ``the jewel of muslim art in india and one of the universally admired masterpieces of the world's heritage ''. it is regarded by many as the best example of mughal architecture and a symbol of india's rich history. the taj mahal attracts 7 -- 8 million visitors a year. in 2007, it was declared a winner of the new7wonders of the world (2000 -- 2007) initiative.