United KingdomBy Site Tower of London United KingdomBy City London United Kingdom of Great Britain and Northern IrelandCastles and Town Walls of King Edward in GwyneddDurham Castle and CathedralGiant's Causeway and Causeway CoastIronbridge GorgeSt KildaStonehenge, Avebury and Associated SitesStudley Royal Park including the Ruins of Fountains AbbeyBlenheim PalaceCity of BathFrontiers of the Roman Empire * 31Palace of Westminster and Westminster Abbey including Saint Margaret’s ChurchCanterbury Cathedral, St Augustine's Abbey, and St Martin's ChurchHenderson IslandTower of LondonGough and Inaccessible Islands 32Old and New Towns of EdinburghMaritime GreenwichHeart of Neolithic OrkneyBlaenavon Industrial LandscapeHistoric Town of St George and Related Fortifications, BermudaDerwent Valley MillsDorset and East Devon CoastNew LanarkSaltaireRoyal Botanic Gardens, KewLiverpool – Maritime Mercantile City Delisted 2021Cornwall and West Devon Mining LandscapePontcysyllte Aqueduct and CanalMoravian Church Settlements *The Forth BridgeGorham's Cave ComplexThe English Lake DistrictJodrell Bank ObservatoryThe Great Spa Towns of Europe *The Slate Landscape of Northwest WalesThe Flow Country