{"geometry":{"type":"MultiPolygon","coordinates":[[[[0.721005,51.457184],[0.721021,51.457401],[0.720971,51.45743],[0.720957,51.457827],[0.721008,51.457892],[0.721003,51.457927],[0.720964,51.457966],[0.72018,51.45842],[0.720068,51.458465],[0.719948,51.458467],[0.718793,51.458303],[0.71853,51.458251],[0.718373,51.458143],[0.718356,51.458018],[0.718378,51.457849],[0.718446,51.457536],[0.718415,51.457308],[0.718348,51.457181],[0.71825,51.457075],[0.718087,51.456953],[0.718053,51.456917],[0.718218,51.456842],[0.718331,51.456896],[0.71834,51.456819],[0.718467,51.45649],[0.718417,51.456348],[0.718616,51.456212],[0.719131,51.455989],[0.719527,51.45577],[0.719651,51.455596],[0.719737,51.455429],[0.719846,51.4551],[0.720029,51.454499],[0.720151,51.454064],[0.720182,51.453857],[0.720274,51.453601],[0.720315,51.453372],[0.720376,51.453242],[0.720478,51.452965],[0.720591,51.452552],[0.720958,51.452352],[0.721042,51.452378],[0.720739,51.453378],[0.720947,51.453423],[0.721173,51.453508],[0.721455,51.453646],[0.721605,51.453744],[0.721688,51.453835],[0.721992,51.454387],[0.72217,51.454811],[0.722,51.455609],[0.721056,51.455991],[0.720896,51.456573],[0.720961,51.456766],[0.721005,51.457184]]],[[[0.721724,51.449974],[0.721407,51.450947],[0.72112,51.451888],[0.721105,51.451909],[0.721049,51.451936],[0.720978,51.451938],[0.720945,51.451928],[0.720901,51.451893],[0.720894,51.451871],[0.720898,51.451849],[0.721396,51.450261],[0.721709,51.449224],[0.721716,51.449024],[0.721527,51.448678],[0.721445,51.448246],[0.721502,51.447761],[0.721569,51.447471],[0.72166,51.447336],[0.721725,51.44728],[0.721949,51.447269],[0.722358,51.447231],[0.722489,51.447255],[0.722634,51.447313],[0.722878,51.447465],[0.722986,51.447553],[0.723047,51.447635],[0.723028,51.447694],[0.722723,51.44927],[0.721951,51.449201],[0.721724,51.449974]]],[[[0.732115,51.451422],[0.731432,51.45176],[0.731138,51.451855],[0.730759,51.451922],[0.730552,51.451939],[0.729023,51.451928],[0.727718,51.451884],[0.722889,51.451779],[0.723019,51.450959],[0.723306,51.450961],[0.723288,51.451197],[0.727239,51.451316],[0.729767,51.451341],[0.730598,51.451361],[0.730886,51.451344],[0.731231,51.45126],[0.73275,51.450663],[0.733075,51.450952],[0.732812,51.451087],[0.732115,51.451422]]],[[[0.722624,51.452398],[0.722627,51.452443],[0.722497,51.452446],[0.722495,51.4524],[0.722624,51.452398]]],[[[0.718454,51.454427],[0.718582,51.454439],[0.719351,51.45545],[0.719113,51.455685],[0.718982,51.455736],[0.718881,51.455756],[0.718773,51.45576],[0.718645,51.455751],[0.718532,51.455724],[0.718463,51.455692],[0.71797,51.455062],[0.717806,51.454841],[0.717757,51.454696],[0.7178,51.454546],[0.71788,51.454498],[0.71819,51.454423],[0.718454,51.454427]]],[[[0.72188,51.456327],[0.721862,51.456393],[0.721748,51.456382],[0.721765,51.456316],[0.72188,51.456327]]]]},"type":"Feature","properties":{"entry-date":"2024-10-17","start-date":"","end-date":"","entity":7502706,"name":"Coastal artillery defence structures on the Isle of Grain, including the Artillery Tower (Grain Tower)","dataset":"heritage-at-risk","typology":"geography","reference":"1019955","prefix":"heritage-at-risk","organisation-entity":16,"quality":"authoritative","documentation-url":"https://historicengland.org.uk/advice/heritage-at-risk/search-register/list-entry/48030"}}